fix highbit video

cc/resources/video_resource_updater_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/resources/video_resource_updater.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 260 matching lines @@
 };
 
 TEST_F(VideoResourceUpdaterTestWithF16, HighBitFrame) {
   VideoResourceUpdater updater(context_provider_.get(),
                                resource_provider3d_.get());
   scoped_refptr<media::VideoFrame> video_frame = CreateTestHighBitFrame();
 
   VideoFrameExternalResources resources =
       updater.CreateExternalResourcesFromVideoFrame(video_frame);
   EXPECT_EQ(VideoFrameExternalResources::YUV_RESOURCE, resources.type);
+  EXPECT_NEAR(resources.multiplier, 2.0, 0.1);
+  EXPECT_NEAR(resources.offset, 0.5, 0.1);
+  VideoFrameExternalResources resources2 =

[danakj, 2016/10/06 00:19:06]

What's this 2nd case testing that's diffrent?

[hubbe, 2016/10/06 00:21:51]

Comment added.

+      updater.CreateExternalResourcesFromVideoFrame(video_frame);
+  EXPECT_EQ(VideoFrameExternalResources::YUV_RESOURCE, resources2.type);
+  EXPECT_NEAR(resources2.multiplier, 2.0, 0.1);
+  EXPECT_NEAR(resources2.offset, 0.5, 0.1);
 }
 
 TEST_F(VideoResourceUpdaterTest, HighBitFrameSoftwareCompositor) {
   VideoResourceUpdater updater(nullptr, resource_provider_software_.get());
   scoped_refptr<media::VideoFrame> video_frame = CreateTestHighBitFrame();
 
   VideoFrameExternalResources resources =
       updater.CreateExternalResourcesFromVideoFrame(video_frame);
   EXPECT_EQ(VideoFrameExternalResources::SOFTWARE_RESOURCE, resources.type);
 }
@@ skipping 257 matching lines @@
           FromHalfFloat(half_floats[i] + 1) - FromHalfFloat(half_floats[i]);
       EXPECT_NEAR(FromHalfFloat(half_floats[i]), integers[i] * multiplier,
                   expected_precision)
           << "i = " << i << " bits = " << bits;
     }
   }
 }
 
 }  // namespace
 }  // namespace cc