Moving updateClipConservativelyUsingBounds into SkCanvas
This method is being moved from SkPictureRecord to become a protected member of SkCanvas so that other classes derived from SkCanvas can use it.
This Patch also applies the fix provided by updateClipConservativelyUsingBounds to SkPictureUtils::GatherPixelRefs
BUG=https://code.google.com/p/chromium/issues/detail?id=244893
Review URL: https://codereview.chromium.org/
15894005
git-svn-id: http://skia.googlecode.com/svn/trunk@9326
2bbb7eff-a529-9590-31e7-
b0007b416f81