Add a GpuMemoryBuffer pool that creates hardware backed VideoFrames.

media/test/pipeline_integration_test_base.cc

Index: media/test/pipeline_integration_test_base.cc
diff --git a/media/test/pipeline_integration_test_base.cc b/media/test/pipeline_integration_test_base.cc
index 5217925217b713ce57ccfd6e32354f3a27e003c2..91332456245afb110c26ff7179d71b137be01e2f 100644
--- a/media/test/pipeline_integration_test_base.cc
+++ b/media/test/pipeline_integration_test_base.cc
@@ -247,7 +247,7 @@ scoped_ptr<Renderer> PipelineIntegrationTestBase::CreateRenderer() {
   // Disable frame dropping if hashing is enabled.
   scoped_ptr<VideoRenderer> video_renderer(new VideoRendererImpl(
       message_loop_.message_loop_proxy(), video_sink_.get(),
-      video_decoders.Pass(), false, new MediaLog()));
+      video_decoders.Pass(), false, nullptr, new MediaLog()));
 
   if (!clockless_playback_) {
     audio_sink_ = new NullAudioSink(message_loop_.message_loop_proxy());