Compute the base dpi from X

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 a8b1dda33758c1e08aaedace617af8a5e4b1c562..9268741ee109a3a2638bd9de2c99028de33585b1 100644
--- a/content/test/gpu/gpu_tests/pixel_expectations.py
+++ b/content/test/gpu/gpu_tests/pixel_expectations.py
@@ -11,4 +11,10 @@ class PixelExpectations(GpuTestExpectations):
     # Sample Usage:
     # self.Fail('Pixel.Canvas2DRedBox',
     #     ['mac', 'amd', ('nvidia', 0x1234)], bug=123)
+    self.Fail('Pixel.Canvas2DRedBox',
+              [ ('nvidia', 0x104a)], bug=485183)
+    self.Fail('Pixel.CSS3DBlueBox',
+              [ ('nvidia', 0x104a)], bug=485183)
+    self.Fail('Pixel.WebGLGreenTriangle',
+              [ ('nvidia', 0x104a)], bug=485183)

[Ken Russell (switch to Gerrit), 2015/05/15 18:18:56]

Actually, since you need to update the revision number of all of these tests,
you'll have to mark them failing for all platforms. In this CL, please also
increment the version numbers for all of these tets in
src/content/test/gpu/page_sets/pixel_tests.py .

We need to keep the duration of how long these are marked failing as short as
possible. Once this is in the CQ, please prepare and send for review another CL
which un-marks these as failing.

[oshima, 2015/05/15 19:37:18]

Done.

     pass

[Ken Russell (switch to Gerrit), 2015/05/15 18:18:56]

I think you may need to remove this "pass". Did you try running the tests with
this patch?
https://www.chromium.org/developers/testing/gpu-testing#TOC-Running-the-GPU-T...

If it runs OK then no need to remove it.

[oshima, 2015/05/15 19:37:18]

Done.