Commented out Pixel tests for Android bot.

build/android/buildbot/bb_device_steps.py

Index: build/android/buildbot/bb_device_steps.py
diff --git a/build/android/buildbot/bb_device_steps.py b/build/android/buildbot/bb_device_steps.py
index cb09e9081543ceaa89f1ebeabda5c9e2e6c7b956..a63661a8142c4da560dd933211f6e1543421739e 100755
--- a/build/android/buildbot/bb_device_steps.py
+++ b/build/android/buildbot/bb_device_steps.py
@@ -425,9 +425,15 @@ def RunWebRTCTests(options):
 
 def RunGPUTests(options):
   InstallApk(options, INSTRUMENTATION_TESTS['ContentShell'], False)
-  bb_annotations.PrintNamedStep('gpu_tests')
-  RunCmd(['content/test/gpu/run_gpu_test',
-          '--browser=android-content-shell', 'pixel'])
+
+  # Pixel tests require that the browser implements GrabWindowSnapshot and
+  # GrabViewSnapshot, which android-content-shell currently does not.
+  # (crbug.com/285932)
+
+  # bb_annotations.PrintNamedStep('gpu_tests')
+  # RunCmd(['content/test/gpu/run_gpu_test',
+  #         '--browser=android-content-shell', 'pixel'])
+
   bb_annotations.PrintNamedStep('webgl_conformance_tests')
   RunCmd(['content/test/gpu/run_gpu_test',
           '--browser=android-content-shell', 'webgl_conformance',