Move Pipeline permanent callbacks into Pipeline::Client interface.

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 409c2fb2028e3524156844ffaa54656915b06a6d..be5f8ca3254f95a33d6b94ab8b2706e99e1e6509 100644
--- a/media/base/mock_filters.cc
+++ b/media/base/mock_filters.cc
@@ -13,23 +13,17 @@ using ::testing::Return;
 
 namespace media {
 
-MockPipeline::MockPipeline() {}
+MockPipelineClient::MockPipelineClient() {}
+MockPipelineClient::~MockPipelineClient() {}
 
+MockPipeline::MockPipeline() {}
 MockPipeline::~MockPipeline() {}
 
 void MockPipeline::Start(Demuxer* demuxer,
                          std::unique_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);
+                         Client* client,
+                         const PipelineStatusCB& seek_cb) {
+  Start(demuxer, &renderer, client, seek_cb);
 }
 
 void MockPipeline::Resume(std::unique_ptr<Renderer> renderer,