We especially need to investigate why we have color conversion errors beyond acceptable error margin? For example, we are getting 0,0,18,18 instead of 0,0,26,26, which doesn't seem acceptable.

It turned out that this is a Skia bug. The bug is filed for more investigation by Skia team.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7

commit 5696a13dd71bbec8c7e86507e4353b4e9af0f8f7
Author: Reza.Zakerinasab <zakerinasab@chromium.org>
Date: Tue Jul 18 17:07:42 2017

Refactor ImageBitmap color correction code

This change addresses a couple of issues:
- Simplifies the color correction code path in ImageBitmap
by using the same general code path for all the constructors
(except ImageData which needs a separate code path).
- Adds resize option to the constructor from ImageData.
- Updates ImageBitmap resize layout tests to enlarge the
source (instead of shrinking) such that the correct application
of filter quality can be checked.

Bug: 627855, 665919 , 734587 , 734588 
Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: I73d021a8e07c5a2387111c8daec0122cddb85ebb
Reviewed-on: https://chromium-review.googlesource.com/542959
Reviewed-by: Justin Novosad <junov@chromium.org>
Commit-Queue: Mohammad Reza Zakerinasab <zakerinasab@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487505}
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/canvas-createImageBitmap-drawImage-video.html
[add] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/resources/red-green-blue-white-2x2.ogv
[add] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/resources/red-green-semi-transparent-2x2.png
[add] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/resources/tex-image-and-sub-image-image-bitmap-utils-resize-video.js
[add] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/resources/tex-image-and-sub-image-image-bitmap-utils-resize.js
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/texImage-imageBitmap-from-blob-resize.html
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/texImage-imageBitmap-from-canvas-resize.html
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/texImage-imageBitmap-from-image-resize.html
[add] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/texImage-imageBitmap-from-imageData-resize.html
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/LayoutTests/fast/canvas/webgl/texImage-imageBitmap-from-video-resize.html
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/Source/core/imagebitmap/ImageBitmap.cpp
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/Source/core/imagebitmap/ImageBitmap.h
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/Source/core/imagebitmap/ImageBitmapTest.cpp
[modify] https://crrev.com/5696a13dd71bbec8c7e86507e4353b4e9af0f8f7/third_party/WebKit/Source/modules/canvas2d/CanvasRenderingContext2DTest.cpp