Revert "Respect kRectsMustMatchForMSAASrc_BlitFramebufferFlag in dst setup"

Revert "Respect kRectsMustMatchForMSAASrc_BlitFramebufferFlag in dst setup"

This reverts commit e0ff6ab272dcc5c4d6f3b509da7e0e97acada814.

Reason for revert: a bunch of bots failed.

Original change's description:
> Respect kRectsMustMatchForMSAASrc_BlitFramebufferFlag in dst setup
>
> Crurently, when preparing a texture for blitFramebuffer, we ignore the
> kRectsMustMatchForMSAASrc_BlitFramebufferFlag, and may attempt to
> copy from one src rect to a different dst rect.
>
> This change updates initDescForDstCopy and setupDstTexture to allocate
> larger textures if necessary and accomodate this flags requirements.
>
> Bug: 658277
> Change-Id: I500f10dba5700f5f7a7acad04bcdbc9ac9994835
> Reviewed-on: https://skia-review.googlesource.com/10247
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>
>

TBR=bsalomon@google.com,ericrk@chromium.org,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Change-Id: I7fbd6c2652fe71c707d3120b035e0365fbc7fa66
Reviewed-on: https://skia-review.googlesource.com/10920
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>