Update pixel test expectation and add new worker tests

content/test/gpu/gpu_tests/pixel_expectations.py

Index: content/test/gpu/gpu_tests/pixel_expectations.py
diff --git a/content/test/gpu/gpu_tests/pixel_expectations.py b/content/test/gpu/gpu_tests/pixel_expectations.py
index 3a8fd4e1c90e0bbf0459e90dc028cb48811363ed..488c7b0e1d33affd75090320bc1d91eb6d8c4e26 100644
--- a/content/test/gpu/gpu_tests/pixel_expectations.py
+++ b/content/test/gpu/gpu_tests/pixel_expectations.py
@@ -32,5 +32,5 @@ class PixelExpectations(GpuTestExpectations):
     self.Fail('Pixel.CSSFilterEffects.NoOverlays', ['mac'], bug=581526)
 
     # TODO(xidachen) check / generate reference images
-    self.Fail('Pixel.OffscreenCanvasWebGLGreenBox', bug=563852)
-    self.Fail('Pixel.OffscreenCanvasWebGLGreenBoxES3', ['mac'], bug=563852)
+    self.Fail('Pixel.OffscreenCanvasWebGLRedBoxWorker', bug=563852)
+    self.Fail('Pixel.OffscreenCanvasWebGLRedBoxWorkerES3', ['mac'], bug=563852)

[Justin Novosad, 2016/09/21 17:23:21]

What is going on here. Are the old tests passing now?

[xidachen, 2016/09/21 17:50:17]

Yes. The way pixel test works is like this:
1. Write a new test, mark it as failure, land the patch
2. GPU bots will run the test, generate reference images and store them on
cloud.
3. Once all bots have generated the reference images, remove this failure entry.
Because the bots will use the images stored on cloud as reference images.

I checked the reference image, and the results on win, linux and android is as
expected. But on mac it is giving me a black box on white background, instead of
a green box on white background. I have to dig into that. Anyway, in my opinion,
that should not necessary block this CL.