Force sRGB color profile on Mac for pixel tests

content/test/gpu/gpu_tests/pixel_integration_test.py

Index: content/test/gpu/gpu_tests/pixel_integration_test.py
diff --git a/content/test/gpu/gpu_tests/pixel_integration_test.py b/content/test/gpu/gpu_tests/pixel_integration_test.py
index cbeca3d32596231e7d7749908a4b25ab743c194c..92fdba6f4a437cb9c2ed89cdd6a6a3ee81d00dd1 100644
--- a/content/test/gpu/gpu_tests/pixel_integration_test.py
+++ b/content/test/gpu/gpu_tests/pixel_integration_test.py
@@ -11,6 +11,7 @@ from gpu_tests import cloud_storage_integration_test_base
 from gpu_tests import path_util
 from gpu_tests import pixel_expectations
 from gpu_tests import pixel_test_pages
+from gpu_tests import color_profile_manager
 
 from py_utils import cloud_storage
 from telemetry.util import image_util
@@ -55,17 +56,25 @@ class PixelIntegrationTest(
 
   @classmethod
   def SetUpProcess(cls):
+    cls._color_profile_manager = color_profile_manager.ColorProfileManager()
+    cls._color_profile_manager.ForceSRGB()
     super(PixelIntegrationTest, cls).SetUpProcess()
     cls.CustomizeBrowserArgs(cls._AddDefaultArgs([]))
     cls.StartBrowser()
     cls.SetStaticServerDirs(test_data_dirs)
 
+  @classmethod
+  def TearDownProcess(cls):
+    super(PixelIntegrationTest, cls).TearDownProcess()
+    cls._color_profile_manager.Restore()
+
   @staticmethod
   def _AddDefaultArgs(browser_args):
     if not browser_args:
       browser_args = []
     # All tests receive the following options.
     return [
+      '--force-color-profile=srgb',
       '--enable-gpu-benchmarking',
       '--test-type=gpu'] + browser_args