Update AudioRenderer, VideoRenderer, and AudioDecoder Initialize() methods to use PipelineStatusCB.

media/base/mock_filters.h

Index: media/base/mock_filters.h
diff --git a/media/base/mock_filters.h b/media/base/mock_filters.h
index 6ccbc3262fa95b2f6d705e2d085dfd1b65ae9b2a..b2b12c2e5cd6ae8594288c72533eff204ed4af83 100644
--- a/media/base/mock_filters.h
+++ b/media/base/mock_filters.h
@@ -211,7 +211,7 @@ class MockAudioDecoder : public AudioDecoder {
 
   // AudioDecoder implementation.
   MOCK_METHOD3(Initialize, void(DemuxerStream* stream,
-                                const base::Closure& callback,
+                                const PipelineStatusCB& callback,
                                 const StatisticsCallback& stats_callback));
   MOCK_METHOD1(Read, void(const ReadCB& callback));
   MOCK_METHOD1(ProduceAudioSamples, void(scoped_refptr<Buffer>));
@@ -238,7 +238,7 @@ class MockVideoRenderer : public VideoRenderer {
 
   // VideoRenderer implementation.
   MOCK_METHOD3(Initialize, void(VideoDecoder* decoder,
-                                const base::Closure& callback,
+                                const PipelineStatusCB& callback,
                                 const StatisticsCallback& stats_callback));
   MOCK_METHOD0(HasEnded, bool());
 
@@ -265,7 +265,7 @@ class MockAudioRenderer : public AudioRenderer {
 
   // AudioRenderer implementation.
   MOCK_METHOD3(Initialize, void(AudioDecoder* decoder,
-                                const base::Closure& init_callback,
+                                const PipelineStatusCB& init_callback,
                                 const base::Closure& underflow_callback));
   MOCK_METHOD0(HasEnded, bool());
   MOCK_METHOD1(SetVolume, void(float volume));
@@ -317,8 +317,8 @@ class MockFilterCollection {
 void RunFilterCallback(::testing::Unused, const base::Closure& callback);
 void RunFilterStatusCB(::testing::Unused, const FilterStatusCB& cb);
 void RunPipelineStatusCB(PipelineStatus status, const PipelineStatusCB& cb);
-void RunFilterCallback3(::testing::Unused, const base::Closure& callback,
-                        ::testing::Unused);
+void RunPipelineStatusCB3(::testing::Unused, const PipelineStatusCB& callback,
+                          ::testing::Unused);
 
 // Helper gmock function that immediately executes the Closure on behalf of the
 // provided filter.  Can be used when mocking the Stop() method.