Re-land extract state management from WebMediaPlayerImpl.

media/base/mock_filters.cc

Index: media/base/mock_filters.cc
diff --git a/media/base/mock_filters.cc b/media/base/mock_filters.cc
index 86b882c4da90ff92f7128aaaff42a1e7a95eebfb..1c783bd55f0319e71b512b83813a27e8bfc1bbd1 100644
--- a/media/base/mock_filters.cc
+++ b/media/base/mock_filters.cc
@@ -14,6 +14,31 @@ using ::testing::Return;
 
 namespace media {
 
+MockPipeline::MockPipeline() {}
+
+MockPipeline::~MockPipeline() {}
+
+void MockPipeline::Start(Demuxer* demuxer,
+                         scoped_ptr<Renderer> renderer,
+                         const base::Closure& ended_cb,
+                         const PipelineStatusCB& error_cb,
+                         const PipelineStatusCB& seek_cb,
+                         const PipelineMetadataCB& metadata_cb,
+                         const BufferingStateCB& buffering_state_cb,
+                         const base::Closure& duration_change_cb,
+                         const AddTextTrackCB& add_text_track_cb,
+                         const base::Closure& waiting_for_decryption_key_cb) {
+  Start(demuxer, &renderer, ended_cb, error_cb, seek_cb, metadata_cb,
+        buffering_state_cb, duration_change_cb, add_text_track_cb,
+        waiting_for_decryption_key_cb);
+}
+
+void MockPipeline::Resume(scoped_ptr<Renderer> renderer,
+                          base::TimeDelta timestamp,
+                          const PipelineStatusCB& seek_cb) {
+  Resume(&renderer, timestamp, seek_cb);
+}
+
 MockDemuxer::MockDemuxer() {}
 
 MockDemuxer::~MockDemuxer() {}