Rename AudioRenderer::Play/Pause() to Start/StopRendering().

media/base/pipeline.cc

Index: media/base/pipeline.cc
diff --git a/media/base/pipeline.cc b/media/base/pipeline.cc
index 3cfe296155fd8a9d1b05458e6a3adb7cbe278d05..c0a4343bdf894d9e2af2a475755d80070437c4a1 100644
--- a/media/base/pipeline.cc
+++ b/media/base/pipeline.cc
@@ -421,7 +421,9 @@ void Pipeline::StateTransitionTask(PipelineStatus status) {
         // We use audio stream to update the clock. So if there is such a
         // stream, we pause the clock until we receive a valid timestamp.
         waiting_for_clock_update_ = true;
-        if (!audio_renderer_) {
+        if (audio_renderer_) {
+          audio_renderer_->StartRendering();
+        } else {
           clock_->SetMaxTime(clock_->Duration());
           StartClockIfWaitingForTimeUpdate_Locked();
         }
@@ -482,10 +484,6 @@ void Pipeline::DoSeek(
   SerialRunner::Queue bound_fns;
 
   // Pause.
-  if (audio_renderer_) {
-    bound_fns.Push(base::Bind(
-        &AudioRenderer::Pause, base::Unretained(audio_renderer_.get())));
-  }
   if (text_renderer_) {
     bound_fns.Push(base::Bind(
         &TextRenderer::Pause, base::Unretained(text_renderer_.get())));
@@ -533,11 +531,6 @@ void Pipeline::DoPlay(const PipelineStatusCB& done_cb) {
   PlaybackRateChangedTask(GetPlaybackRate());
   VolumeChangedTask(GetVolume());
 
-  if (audio_renderer_) {
-    bound_fns.Push(base::Bind(
-        &AudioRenderer::Play, base::Unretained(audio_renderer_.get())));
-  }
-
   if (video_renderer_) {
     bound_fns.Push(base::Bind(
         &VideoRenderer::Play, base::Unretained(video_renderer_.get())));
@@ -758,6 +751,9 @@ void Pipeline::SeekTask(TimeDelta time, const PipelineStatusCB& seek_cb) {
 
   // Kick off seeking!
   {
+    if (audio_renderer_)
+      audio_renderer_->StopRendering();
+
     base::AutoLock auto_lock(lock_);
     if (clock_->IsPlaying())
       clock_->Pause();