Add bench and gm for shapes

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1677253002

patch from issue 1686673002 at patchset 20001 (http://crrev.com/1686673002#ps20001)

Review URL: https://codereview.chromium.org/1677253002

skiaserve: Fix /cmd/N and /cmd/N[0|1], the response was never queued.

BUG=skia:
R=joshualitt@google.com, ethannicholas@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686553006

Review URL: https://codereview.chromium.org/1686553006

added JSON support for various lesser-used features
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1690613002

Review URL: https://codereview.chromium.org/1690613002

More efficient Jpeg skipScanlines for older versions of libjpeg-turbo

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1683283002

Review URL: https://codereview.chromium.org/1683283002

Fix bug processing bmp bit masks

BUG=skia:4866
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1688003002

Review URL: https://codereview.chromium.org/1688003002

added SkDebugCanvas::toJSON
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684233002

Review URL: https://codereview.chromium.org/1684233002

Documentation for accessing the different repositories of SKPs

BUG=skia:2306
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1683233002
NOTRY=true
DOCS_PREVIEW= https://skia.org/?cl=1683233002

Review URL: https://codereview.chromium.org/1683233002

Start whittling down GrTextContext

TBR=
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684733005

Review URL: https://codereview.chromium.org/1684733005

added some missing static modifiers
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1690683002

Review URL: https://codereview.chromium.org/1690683002

Remove GrTextBlobCache/GrAtlasTextBlob friendliness

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686113002

Review URL: https://codereview.chromium.org/1686113002

disable flaky gm for now

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1689653002

TBR=

Review URL: https://codereview.chromium.org/1689653002

Revert of Make SkPicture/SkImageGenerator default to SkCodec (patchset #7 id:120001 of https://codereview.chromium.org/1671193002/ )

Reason for revert:
Breaks Ubuntu and Mac CMAKE

Original issue's description:
> Make SkPicture/SkImageGenerator default to SkCodec
>
> Remove reference to SkImageDecoder from SkPicture. Make the default
> InstallPixelRefProc passed to CreateFromStream use
> SkImageGenerator::NewFromEncoded instead.
>
> Make SkImageGenerator::NewFromEncoded create an SkCodecImageGenerator.
> Remove the old version that used SkImageDecoder.
>
> Remove all versions of lazy_decode_bitmap/LazyDecodeBitmap. The default
> now behaves lazily.
>
> Update all clients to use the default.
>
> Move SkImageDecoderGenerator into KtxTest.cpp, and use it directly.
>
> BUG=skia:4691
> BUG=skia:4290
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1671193002
>
> Committed: https://skia.googlesource.com/skia/+/026388a01864c74208ad57d1ba4f711602d101c6

TBR=msarett@google.com,reed@google.com,scroggo@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4691

Review URL: https://codereview.chromium.org/1685963004

Make SkPicture/SkImageGenerator default to SkCodec

Remove reference to SkImageDecoder from SkPicture. Make the default
InstallPixelRefProc passed to CreateFromStream use
SkImageGenerator::NewFromEncoded instead.

Make SkImageGenerator::NewFromEncoded create an SkCodecImageGenerator.
Remove the old version that used SkImageDecoder.

Remove all versions of lazy_decode_bitmap/LazyDecodeBitmap. The default
now behaves lazily.

Update all clients to use the default.

Move SkImageDecoderGenerator into KtxTest.cpp, and use it directly.

BUG=skia:4691
BUG=skia:4290
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1671193002

Review URL: https://codereview.chromium.org/1671193002

Turn on conservative raster clip for GPU canvases
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1682223002

Review URL: https://codereview.chromium.org/1682223002

Finalize gpu shaders in ProgramBuilding.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1689703002

Review URL: https://codereview.chromium.org/1689703002

Fix for mips build

TBR=scroggo@google.com
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1688823002

Review URL: https://codereview.chromium.org/1688823002

move compose-shader into base-class as factory

next steps:
1. this lands
2. update android to call the new factory
3. move SkComposeShader.h into private

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686803003

Review URL: https://codereview.chromium.org/1686803003

cleanup textblob cache sanity check and prevent it from bitrotting

TBR=bsalomon@google.com
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684513004

Review URL: https://codereview.chromium.org/1684513004

Clean up comments in SkSwizzler

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1690583002

Review URL: https://codereview.chromium.org/1690583002

Sk4f: floor() via int32_t roundtrip.

About 25% faster on both x86 and ARMv7.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1682953002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1682953002

Enable ImageGenerator tests on direct raster and direct gpu backends

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1682973004

Review URL: https://codereview.chromium.org/1682973004

Moved Canvas->JSON and JSON->Canvas functionality into SkDebugCanvas.
SkJSONCanvas and SkJSONRenderer will be deleted once the debug server
has been updated.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681643002

Committed: https://skia.googlesource.com/skia/+/32fff1ba0c759d97ab78320b7ae46dd7696a4e6e

Committed: https://skia.googlesource.com/skia/+/46cb6d6b82b0ab71033aef91419e8beae25bb8a4

Review URL: https://codereview.chromium.org/1681643002

Revert of Moved Canvas->JSON and JSON->Canvas functionality into SkDebugCanvas. (patchset #3 id:40001 of https://codereview.chromium.org/1681643002/ )

Reason for revert:
breaks various android builds, e.g.

https://android-build.storage.googleapis.com/builds/git_master-skia-linux-bullhead-userdebug/2596406/acb02999d48ace628601452700d4b4f8dcd5ed71b426e6ecdb1c7f5bc5452f7b/logs/build_error.log?Signature=BkLEdMOdi0LelP0v939QECdTZzznSD2dLFIkPu52E7%2BPr5Oj1ktq5nNlxGZn%2F4ZhCKXAw2%2FNHxy27nNJ8lffcgXn7PhQpa82bP%2B8F%2Bbyo9j%2BT%2B3etmOdQFEejJSRsEv2RrVWtKsKYRX%2FuZinrF9yD37jUpSbKNZvmvIbKa4V4IQ%3D&GoogleAccessId=701025073339-mqn0q2nvir9iurm6q5d00tdv7blbgvjr%40developer.gserviceaccount.com&Expires=1455108483

external/skia/bench/../tools/debugger/SkDrawCommand.cpp:602:9: error: use of undeclared identifier 'free'
        free(data);

Original issue's description:
> Moved Canvas->JSON and JSON->Canvas functionality into SkDebugCanvas.
> SkJSONCanvas and SkJSONRenderer will be deleted once the debug server
> has been updated.
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681643002
>
> Committed: https://skia.googlesource.com/skia/+/32fff1ba0c759d97ab78320b7ae46dd7696a4e6e
>
> Committed: https://skia.googlesource.com/skia/+/46cb6d6b82b0ab71033aef91419e8beae25bb8a4

TBR=jcgregorio@google.com,joshualitt@chromium.org,ethannicholas@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1683093002

Revert of skia: Add support for CHROMIUM_image backed textures. (patchset #19 id:380001 of https://codereview.chromium.org/1623653002/ )

Reason for revert:
Breaks ASAN bot:

Direct leak of 56 byte(s) in 1 object(s) allocated from:
...
test_CustomTexture

https://uberchromegw.corp.google.com/i/client.skia/builders/Test-Ubuntu-GCC-Golo-GPU-GT610-x86_64-Debug-ASAN/builds/2676/steps/dm/logs/stdio

Original issue's description:
> skia: Add support for CHROMIUM_image backed textures.
>
> I created a new abstract base class TextureStorageAllocator that consumers of
> Skia can subclass and pass back to Skia. When a surface is created with a
> pointer to a TextureStorageAllocator, any textures it creates, or that are
> derived from the original surface, will allocate and deallocate storage using
> the methods on TextureStorageAllocator.
>
> BUG=https://code.google.com/p/chromium/issues/detail?id=579664
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1623653002
>
> Committed: https://skia.googlesource.com/skia/+/92098e691f10a010e7421125ba4d44c02506bb55
>
> Committed: https://skia.googlesource.com/skia/+/7fec91ce6660190f8d7c5eb6f3061e4550cc672b
>
> Committed: https://skia.googlesource.com/skia/+/b8d6e088590160f1198110c2371b802c1d541a36

TBR=bsalomon@chromium.org,cblume@chromium.org,bsalomon@google.com,robertphillips@google.com,egdaniel@google.com,reed@google.com,erikchen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=https://code.google.com/p/chromium/issues/detail?id=579664

Review URL: https://codereview.chromium.org/1684993002

turn off debug svg file

TBR=fmalita@chromium.org
BUG=skia:4549
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674303004

Review URL: https://codereview.chromium.org/1674303004

Sk4f: add floor()

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1685773002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Committed: https://skia.googlesource.com/skia/+/86c6c4935171a1d2d6a9ffbff37ec6dac1326614

CQ_EXTRA_TRYBOTS=client.skia.android:Test-Android-GCC-Nexus7-GPU-Tegra3-Arm7-Release-Trybot,Test-Android-GCC-Nexus9-GPU-TegraK1-Arm64-Release-Trybot

Review URL: https://codereview.chromium.org/1685773002

Revert of Sk4f: add floor() (patchset #3 id:40001 of https://codereview.chromium.org/1685773002/ )

Reason for revert:
build break must be this, right?

Original issue's description:
> Sk4f: add floor()
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1685773002
> CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot
>
> Committed: https://skia.googlesource.com/skia/+/86c6c4935171a1d2d6a9ffbff37ec6dac1326614

TBR=herb@google.com,mtklein@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1679343004

Moved Canvas->JSON and JSON->Canvas functionality into SkDebugCanvas.
SkJSONCanvas and SkJSONRenderer will be deleted once the debug server
has been updated.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681643002

Committed: https://skia.googlesource.com/skia/+/32fff1ba0c759d97ab78320b7ae46dd7696a4e6e

Review URL: https://codereview.chromium.org/1681643002

make test consistent

Don't pass rand() to a function as a pair of
parameters, since the order of evaluation
is unknown

TBR=robertphillips@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1682203002

Review URL: https://codereview.chromium.org/1682203002

Sk4f: add floor()

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1685773002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1685773002

skia: Add support for CHROMIUM_image backed textures.

I created a new abstract base class TextureStorageAllocator that consumers of
Skia can subclass and pass back to Skia. When a surface is created with a
pointer to a TextureStorageAllocator, any textures it creates, or that are
derived from the original surface, will allocate and deallocate storage using
the methods on TextureStorageAllocator.

BUG=https://code.google.com/p/chromium/issues/detail?id=579664
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1623653002

Committed: https://skia.googlesource.com/skia/+/92098e691f10a010e7421125ba4d44c02506bb55

Committed: https://skia.googlesource.com/skia/+/7fec91ce6660190f8d7c5eb6f3061e4550cc672b

Review URL: https://codereview.chromium.org/1623653002

add drawCircle to c api

BUG=skia:4927
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684763002

TBR=

Review URL: https://codereview.chromium.org/1684763002

add helper to create fancy underlines

Add a couple of utility functions to SkPaint that return the bounds
of glyphs between a pair of lines.

The common use case envisioned generates the edges of descenders
between the top and bottom bounds of an underline to allow computing
a stroke that skips those descenders.

The implementation stores a linked list in each glyph containing
the bounds of the lines parallel to the advance and the outermost
intersections within those bounds.

When the glyph cache is constructed, the glyph path is intersected
with the bounds and the extreme min and max values within the bounds
is added to an intercept.

Share the text to path iter to construct the data.

Make a half-hearted attempt to support vertical text; while the
vertical implementation is complete; surrounding code (e.g. paint
align) has short-comings with vertical.

R=fmalita@chromium.org, reed@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1654883003

Review URL: https://codereview.chromium.org/1654883003

moved debugger support files from src/utils/debugger to tools/debugger
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1678893003

Review URL: https://codereview.chromium.org/1678893003

Disable indirect backends for image decode tests

BUG=skia:4924
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684713002

Review URL: https://codereview.chromium.org/1684713002

update DM deps in g3 build

Added https://skia.googlesource.com/skia/+/f1d415188ffb4c34e2886c2cfceb363a148333f1

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1683803002

Review URL: https://codereview.chromium.org/1683803002

implement more xfermodeproc4f and add GM

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1677293004

Review URL: https://codereview.chromium.org/1684623002

Remove SkNEW_APPEND_TO_TARRAY.

The use of SkNEW_APPEND_TO_TARRAY is now better served by
SkTArray::emplace_back(...) which should now be used instead. The
existing users of SkNEW_APPEND_TO_TARRAY are converted and the code
relating to SkNEW_APPEND_TO_TARRAY is removed.

TBR=reed
This only removes code. The file should also be made private.

Review URL: https://codereview.chromium.org/1682083002

restore sk4i SSE specialization

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1679343003
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1679343003

Slim down Sk4fRoundtrip benches.

Looks like the conversions are complicated enough to not compile away.
No need to mess with random number generation, etc.
We still need to blackhole it into a volatile in the end.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1682793002

Review URL: https://codereview.chromium.org/1682793002

sknx refactoring

  - trim unused specializations (Sk4i, Sk2d) and apis (SkNx_dup)
  - expand apis a little
    * v[0] == v.kth<0>()
    * SkNx_shuffle can now convert to different-sized vectors, e.g. Sk2f <-> Sk4f
  - remove anonymous namespace

I believe it's safe to remove the anonymous namespace right now.
We're worried about violating the One Definition Rule; the anonymous namespace protected us from that.

In Release builds, this is mostly moot, as everything tends to inline completely.
In Debug builds, violating the ODR is at worst an inconvenience, time spent trying to figure out why the bot is broken.

Now that we're building with SSE2/NEON everywhere, very few bots have even a chance about getting confused by two definitions of the same type or function.  Where we do compile variants depending on, e.g., SSSE3, we do so in static inline functions.  These are not subject to the ODR.

I plan to follow up with a tedious .kth<...>() -> [...] auto-replace.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1683543002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1683543002

Add unit test to feed valid SVG sequences to make sure that
path strings can be parsed without returning an error.

Draw the output through Skia and SVG to make sure they are
parsed correctly.

R=fmalita@chromium.org
BUG=skia:4549
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1675053002

Review URL: https://codereview.chromium.org/1675053002

Shot in the dark to fix 581472

BUG=581472
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1679743005

Review URL: https://codereview.chromium.org/1679743005

Add some backend flexibility for shader declarations in ProgramBuilding.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1682703003

Review URL: https://codereview.chromium.org/1682703003

start experimenting with 64bit frame-buffers

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1680523002

Review URL: https://codereview.chromium.org/1680523002

SkTArray to move when moving.

This updates SkTArray to move elements when possible, instead of always
copying them.

TBR=reed
Agreed moving is good. This should also become private.

Committed: https://skia.googlesource.com/skia/+/3c69348e725131150e4ab962dec1b3ff1148a6bd

Review URL: https://codereview.chromium.org/1672063002

Use skstd::remove_pointer_t in GrGLFunction
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1684513003

Review URL: https://codereview.chromium.org/1684513003

Relocate anisotropic mipmap logic to SkMipMap::extractLevel()

Pass a full x/y scale and defer the anisotropic heuristic to SkMipMap.

R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686563002

Review URL: https://codereview.chromium.org/1686563002

skeleton for float <-> half optimized procs

Nothing fancy yet, just calls the serial code in a loop.

I will try to folow this up with at least some of:
   - SSE2 version of serial code
   - NEON version of serial code
   - NEON version using vcvt.f32.f16/vcvt.f16.f32
   - F16C (between AVX and AVX2) version using vcvtph2ps/vcvtps2ph
The last two are fastest but need runtime detection.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686543003

Review URL: https://codereview.chromium.org/1686543003

Use min scale when selecting mip level

R=reed@google.com,robertphillips@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681953004

Review URL: https://codereview.chromium.org/1681953004

Create a thermal manager class and wire it in to nanobench behind a flag

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1671573002

Review URL: https://codereview.chromium.org/1671573002

Revert of SkTArray to move when moving. (patchset #3 id:40001 of https://codereview.chromium.org/1672063002/ )

Reason for revert:
Broke the Chrome roll:

https://codereview.chromium.org/1680563005

Original issue's description:
> SkTArray to move when moving.
>
> This updates SkTArray to move elements when possible, instead of always
> copying them.
>
> TBR=reed
> Agreed moving is good. This should also become private.
>
> Committed: https://skia.googlesource.com/skia/+/3c69348e725131150e4ab962dec1b3ff1148a6bd

TBR=reed@google.com,bungeman@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1683693002

Alter SkXfermode's asFragmentProcessor & asXPFactory contracts

TBR=bsalomon@google.com

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674673002

Review URL: https://codereview.chromium.org/1674673002

Remove SkNx AVX code.  It is not really used.  Getting in the way of refactoring.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1679053002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1679053002

Optionally run RAW images serially

RAW images use a lot of memory. Add a new FLAG to run one at a time so
we have less risk of running out of memory.

Isolate RAW images to their own thread on particular devices where our
images cause OOM errors.

Locally, this drops the max memory use from 3945 MB to 1664 MB (running only --image --images <RAW images we test>)

BUG=skia:4912
BUG=skia:4878
BUG=b/27035849
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681553003

Review URL: https://codereview.chromium.org/1681553003

DM: this must have been missing from the previous CL

It'd be neat to have an Android trybot.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1678293002

Review URL: https://codereview.chromium.org/1678293002

Skia serve now supports favicon correctly

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676403002

Review URL: https://codereview.chromium.org/1676403002

Support --dryRun in nanobench to get a list of benchmarks.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681583002

Review URL: https://codereview.chromium.org/1681583002

Optimize CMYK->RGBA (BGRA) transform for jpeg decodes

Swizzle Bench Runtime
Nexus 6P     0.14x
Dell Venue 8 0.12x

CMYK Jpeg Decode Runtime
Nexus 6P     0.81x
Dell Venue 8 0.85x

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676773003
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1676773003

extend modecolorfilter to 4f

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1670063002

Review URL: https://codereview.chromium.org/1670063002

dm: simplify parallel/serial decisions

  - instead of complicated enclaves, just allow parallel or main thread serial
  - either the Src or the Sink can force the task to go serial

ALSO,
  - simpler file extension parsing

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1675423002

Review URL: https://codereview.chromium.org/1675423002

Reland of whitespace change to test bugdroid (patchset #1 id:1 of https://codereview.chromium.org/1673083003/ )

Reason for revert:
test

Original issue's description:
> Revert of whitespace change to test bugdroid (patchset #1 id:1 of https://codereview.chromium.org/1676253002/ )
>
> Reason for revert:
> test
>
> Original issue's description:
> > whitespace change to test bugdroid
> >
> > NOTRY=true
> > TBR=
> > BUG=skia:4814
> > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676253002
> >
> > Committed: https://skia.googlesource.com/skia/+/ae22c68d847997e37aad1f6ee761ec37decc0a8c
>
> TBR=
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=skia:4814
>
> Committed: https://skia.googlesource.com/skia/+/8dbe00293f5ce05ac99b72e33bf70373bb63e293

TBR=rmistry@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4814

Review URL: https://codereview.chromium.org/1678993002

remove dead SK_SUPPORT_LEGACY_NEG_SCALE_HQ flag

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674263003

Review URL: https://codereview.chromium.org/1674263003

Blacklist RAW images on GPU tests

BUG=skia:4888
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1677133002

Review URL: https://codereview.chromium.org/1677133002

Revert of Moved Canvas->JSON and JSON->Canvas functionality into SkDebugCanvas. (patchset #2 id:20001 of https://codereview.chromium.org/1681643002/ )

Reason for revert:
Breaking cmake build

Original issue's description:
> Moved Canvas->JSON and JSON->Canvas functionality into SkDebugCanvas.
> SkJSONCanvas and SkJSONRenderer will be deleted once the debug server
> has been updated.
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681643002
>
> Committed: https://skia.googlesource.com/skia/+/32fff1ba0c759d97ab78320b7ae46dd7696a4e6e

TBR=jcgregorio@google.com,joshualitt@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1680853002

Moved Canvas->JSON and JSON->Canvas functionality into SkDebugCanvas.
SkJSONCanvas and SkJSONRenderer will be deleted once the debug server
has been updated.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681643002

Review URL: https://codereview.chromium.org/1681643002

Reland of SkTArray to move when moving. (patchset #1 id:1 of https://codereview.chromium.org/1677103002/ )

Reason for revert:
This was not the problem.

Original issue's description:
> Revert of SkTArray to move when moving. (patchset #3 id:40001 of https://codereview.chromium.org/1672063002/ )
>
> Reason for revert:
> This appears to have broken several things.
>
> Original issue's description:
> > SkTArray to move when moving.
> >
> > This updates SkTArray to move elements when possible, instead of always
> > copying them.
> >
> > TBR=reed
> > Agreed moving is good. This should also become private.
> >
> > Committed: https://skia.googlesource.com/skia/+/3c69348e725131150e4ab962dec1b3ff1148a6bd
>
> TBR=reed@google.com,mtklein@google.com,bungeman@google.com
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
>
> Committed: https://skia.googlesource.com/skia/+/2f8c9bf96ceea9d13fb0fc29285ecaf1673f2e8b

TBR=reed@google.com,mtklein@google.com,bungeman@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1678923002

Improve GLSL integer support

 - Adds shader types for uint.
 - Adds a cap for integer support.
 - Uses glVertexAttribIPointer for integer attribs.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1669853002

Committed: https://skia.googlesource.com/skia/+/3a2caf8ecf38124f4ad21a0f6c4dabfcfa17911a

Review URL: https://codereview.chromium.org/1669853002

Revert of SkTArray to move when moving. (patchset #3 id:40001 of https://codereview.chromium.org/1672063002/ )

Reason for revert:
This appears to have broken several things.

Original issue's description:
> SkTArray to move when moving.
>
> This updates SkTArray to move elements when possible, instead of always
> copying them.
>
> TBR=reed
> Agreed moving is good. This should also become private.
>
> Committed: https://skia.googlesource.com/skia/+/3c69348e725131150e4ab962dec1b3ff1148a6bd

TBR=reed@google.com,mtklein@google.com,bungeman@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1677103002

msan: define BREAK_IF_DEBUGGING_AND_OUT_OF_RANGE in piex

This should assert(false) if we're in the error case of RangeCheckedBytePtr::extractBytes:

> #ifdef BREAK_IF_DEBUGGING_AND_OUT_OF_RANGE
>   #define BREAK_IF_DEBUGGING() assert(false)
> #else
>   #define BREAK_IF_DEBUGGING() assert(true)
> #endif
  ...
> std::vector<unsigned char> RangeCheckedBytePtr::extractBytes(size_t pos, size_t length) const {
>   std::vector<unsigned char> result;
>   if (pos + length < pos /* overflow */ || remainingLength() < pos + length) {
>     BREAK_IF_DEBUGGING();
>     error_flag_ = RANGE_CHECKED_BYTE_ERROR_OVERFLOW;
>     return result;
>   }
  ...

BUG=skia:4903
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1678913002

Review URL: https://codereview.chromium.org/1678913002

SkDeflateWStream: support gzip output

BUG=skia:4892
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681603002

Review URL: https://codereview.chromium.org/1681603002

Test CodecImageGenerator on GPU bots

In crrev.com/1549473003, CodecImageGenerator implemented getYUV8Planes,
so that we can test on a GPU bot. Update the arguments to DM so that
we run CodecImageGenerator on GPU bots.

This is adapted from:
https://codereview.chromium.org/1663453002/

This will cause many untriaged images on Gold.
The GPU converts YUV->RGBA differently than we
do in software.

BUG=skia:4888
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676663002

Review URL: https://codereview.chromium.org/1676663002

SkTArray to move when moving.

This updates SkTArray to move elements when possible, instead of always
copying them.

TBR=reed
Agreed moving is good. This should also become private.

Review URL: https://codereview.chromium.org/1672063002

Replace GrGLInterface's function pointers with std::functions.

This is to facilitate binding to GLES2Interface in Chromium rather than the C interface. It requires capturing the GLES2Interface.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674823002

Review URL: https://codereview.chromium.org/1674823002

Create image cache for use by json canvas

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1670153005

Review URL: https://codereview.chromium.org/1670153005

simplify piex.gyp

Was just starting to dig into skia:4903, and decided to start by learning piex.
It's tiny.  Why such GYP complexity to build 5 files?

BUG=skia:4903
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1681533002

Review URL: https://codereview.chromium.org/1681533002

fix float <---> uint16_t conversion, with Mike's tests.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1679713002

patch from issue 1679713002 at patchset 1 (http://crrev.com/1679713002#ps1)
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1676893002

Fix autoroll link

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676993002
NOTRY=true
DOCS_PREVIEW= https://skia.org/?cl=1676993002

Review URL: https://codereview.chromium.org/1676993002

Revert of whitespace change to test bugdroid (patchset #1 id:1 of https://codereview.chromium.org/1676253002/ )

Reason for revert:
test

Original issue's description:
> whitespace change to test bugdroid
>
> NOTRY=true
> TBR=
> BUG=skia:4814
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676253002
>
> Committed: https://skia.googlesource.com/skia/+/ae22c68d847997e37aad1f6ee761ec37decc0a8c

TBR=
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:4814

Review URL: https://codereview.chromium.org/1673083003

whitespace change to test bugdroid

NOTRY=true
TBR=
BUG=skia:4814
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676253002

Review URL: https://codereview.chromium.org/1676253002

Make SkString movable.

This adds a move constructor and move assignment to SkString. This
allows elision of atomic increments and decrements on the fRec.

TBR=reed
Already agreed that moving is good.

Review URL: https://codereview.chromium.org/1672123002

Make SkPaint movable.

This adds a move constructor and move assignment to SkPaint. This
allows elision of atomic increments and decrements on the reference
counted fields.

Review URL: https://codereview.chromium.org/1676843002

msan: build expat from source

This should let us test it on the MSAN bot.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674053002

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN-Trybot

Review URL: https://codereview.chromium.org/1674053002

msan: initialize buffer BlurLargeImage blurs

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN-Trybot

BUG=skia:

Review URL: https://codereview.chromium.org/1676103002

msan: these might be okay with libjpeg guarded.

BUG=skia:4550
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1677913002

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN-Trybot

Review URL: https://codereview.chromium.org/1677913002

try -O1 to speed up msan bot

We want it to be a debug build, but it probably doesn't need to be
completely unoptimized.

dm: 27m -> 7m
nanobench: 140m -> 33m

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1678693002

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN-Trybot

Review URL: https://codereview.chromium.org/1678693002

Update SKP version

Automatic commit by the RecreateSKPs bot.

TBR=
NO_MERGE_BUILDS
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1672403002

Review URL: https://codereview.chromium.org/1672403002

update allocpixels to know about F16

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1675093002

TBR=

Review URL: https://codereview.chromium.org/1675093002

could not resist: fast sse float <--> u16

    - generalizes the bench to float <--> {u8,u16}
    - must remember to implement NEON version at some point

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676853002
CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot

Review URL: https://codereview.chromium.org/1676853002

flags and hacks to get MSAN bot going

This disables a few tests in DM:
   - one BlurLargeImage GM maybe is really broken
   - FontMgrAndroidParser uses libexpat, which I've not (yet?) built from source,
     so MSAN can't see into it.

This extends some of the MSAN stifling we added around SkImageDecoder_libjpeg to SkCodec, and skips .wbmps, .pngs, and .bmps.  We're only seeing issues in colortables for .png and .bmp.

I think I can probably back out disabling Codec and the RAW image decodes...
they should all be covered by the libjpeg stifles.

BUG=skia:4550,skia:4900
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1673663002

CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot,Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Debug-MSAN-Trybot

TBR=msarett@google.com

Review URL: https://codereview.chromium.org/1673663002

Use size_t for get_row_bytes() in SkJpegCodec

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674913002

Review URL: https://codereview.chromium.org/1674913002

update C++11 doc

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1678673002
NOTRY=true
DOCS_PREVIEW= https://skia.org/?cl=1678673002

Review URL: https://codereview.chromium.org/1678673002

Revert of Improve GLSL integer support (patchset #1 id:1 of https://codereview.chromium.org/1669853002/ )

Reason for revert:
MSAN bots are unhappy with this change: https://build.chromium.org/p/chromium.memory.fyi/builders/Linux%20ChromeOS%20MSan%20Tests/builds/7068

Original issue's description:
> Improve GLSL integer support
>
>  - Adds shader types for uint.
>  - Adds a cap for integer support.
>  - Uses glVertexAttribIPointer for integer attribs.
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1669853002
>
> Committed: https://skia.googlesource.com/skia/+/3a2caf8ecf38124f4ad21a0f6c4dabfcfa17911a

TBR=bsalomon@google.com,egdaniel@google.com,ethannicholas@google.com,cdalton@nvidia.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1674813004

Add non-inline SkRTreeFactory constructor to fix clang-cl

When Chromium is switched to build with VS 2015 that switches clang-cl
to build in -fmsc-version=1900 mode. This causes some changes in
importing of constructors and vftables which leads to link errors in
blink_platform.dll. Adding a non-inline constructor makes 1900 mode
behave consistently with 1800 mode and avoids the link error.

The root cause needs investigation but this will unblock the VS 2015
switch.

BUG=440500,498544
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1676833002

Review URL: https://codereview.chromium.org/1676833002

Revert of skia: Add support for CHROMIUM_image backed textures. (patchset #17 id:340001 of https://codereview.chromium.org/1623653002/ )

Reason for revert:
New unit test is failing on Windows ANGLE bots:
http://build.chromium.org/p/client.skia/builders/Test-Win8-MSVC-ShuttleB-GPU-HD4600-x86_64-Release-ANGLE/builds/1866/steps/dm/logs/stdio

Original issue's description:
> skia: Add support for CHROMIUM_image backed textures.
>
> I created a new abstract base class TextureStorageAllocator that consumers of
> Skia can subclass and pass back to Skia. When a surface is created with a
> pointer to a TextureStorageAllocator, any textures it creates, or that are
> derived from the original surface, will allocate and deallocate storage using
> the methods on TextureStorageAllocator.
>
> BUG=https://code.google.com/p/chromium/issues/detail?id=579664
> GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1623653002
>
> Committed: https://skia.googlesource.com/skia/+/92098e691f10a010e7421125ba4d44c02506bb55
>
> Committed: https://skia.googlesource.com/skia/+/7fec91ce6660190f8d7c5eb6f3061e4550cc672b

TBR=bsalomon@chromium.org,cblume@chromium.org,robertphillips@google.com,egdaniel@google.com,reed@google.com,erikchen@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=https://code.google.com/p/chromium/issues/detail?id=579664

Review URL: https://codereview.chromium.org/1673923003

Improve GLSL integer support

 - Adds shader types for uint.
 - Adds a cap for integer support.
 - Uses glVertexAttribIPointer for integer attribs.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1669853002

Review URL: https://codereview.chromium.org/1669853002

Add Histogram Macros to Skia

Adds a set of histogram macros to Skia, modeled after Chrome's
UMA_HISTOGRAM_* macros. These allow logging of high frequency events,
and are useful to analyze real world usage of certain features.

By default, these macros are no-ops. Users can provide a custom
header file which defines these macros if they wish to collect
histogram data. Chrome will provide such a header.

I've currently only added two macros:
- SK_HISTOGRAM_BOOLEAN - logs a true/false type relationship (whether
we are tiling a texture or not on each draw).
- SK_HISTOGRAM_ENUMERATION - logs a set of potential values (which of
a number of choices were selected for the texture upload path).

We could add more unused macros at the moment, but it seems easier to
add these as needed, WDYT?

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1652053004

Review URL: https://codereview.chromium.org/1652053004

SkPngCodec clean-ups

Use png_read_row() instead of png_read_rows(1).
All png_read_rows() does is call png_read_row() in
a loop.  This comes from Leon's comment in:
https://codereview.chromium.org/1671003004/

Also there is a bit of refactoring.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1675843002

Review URL: https://codereview.chromium.org/1675843002

increase subdivision for very large cubics

Allow 512 subdivisions for hairline cubics instead of 64
to allow very large cubics to be properly approximated with
lines.

R=reed@google.com
BUG=339297
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1674813002

Review URL: https://codereview.chromium.org/1674813002

Fix memory leaks in SurfaceClear_Gpu test

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1672083002

Review URL: https://codereview.chromium.org/1672083002