Android: enable H264&VP8 HW accelerator for MediaRecorder

content/renderer/media_recorder/video_track_recorder_unittest.cc

 // Copyright 2015 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 "content/renderer/media_recorder/video_track_recorder.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <string>
@@ skipping 29 matching lines @@
 namespace content {
 
 ACTION_P(RunClosure, closure) {
   closure.Run();
 }
 
 const VideoTrackRecorder::CodecId kTrackRecorderTestCodec[] = {
     VideoTrackRecorder::CodecId::VP8,
     VideoTrackRecorder::CodecId::VP9
 #if BUILDFLAG(RTC_USE_H264)
+    // This unittest can't enumerate HW codecs due to no render thread created.
+    // So H264 can't be included on Android because OpenH264 is not supported.

[mcasas, 2017/04/19 22:32:46]

This comment is hard to parse, because you're referring to
something that can't happen because something else can't 
(doesn't?) happen either.  Rephrase it in a logical way, e.g.

    // This test case can't be enabled in Android because there is no software
    // OpenH264 fallback nor render thread to enumerate the hardware encoders.

[braveyao, 2017/04/20 18:17:29]

Done.

     , VideoTrackRecorder::CodecId::H264
 #endif
 };
 const gfx::Size kTrackRecorderTestSize[] = {
     gfx::Size(kVEAEncoderMinResolutionWidth / 2,
               kVEAEncoderMinResolutionHeight / 2),
     gfx::Size(kVEAEncoderMinResolutionWidth, kVEAEncoderMinResolutionHeight)};
 static const int kTrackRecorderTestSizeDiff = 20;
 
 class VideoTrackRecorderTest
@@ skipping 264 matching lines @@
   Mock::VerifyAndClearExpectations(this);
 }
 
 INSTANTIATE_TEST_CASE_P(,
                         VideoTrackRecorderTest,
                         ::testing::Combine(ValuesIn(kTrackRecorderTestCodec),
                                            ValuesIn(kTrackRecorderTestSize),
                                            ::testing::Bool()));
 
 }  // namespace content