Move DataSource::SetPreload() to BufferedDataSource.

media/base/pipeline.cc

Index: media/base/pipeline.cc
diff --git a/media/base/pipeline.cc b/media/base/pipeline.cc
index e4c865f93dd6c27f2efe3882402c69510c55f8e7..66592faf431a60f322b0d0869ece1a3a6e85a3f9 100644
--- a/media/base/pipeline.cc
+++ b/media/base/pipeline.cc
@@ -189,20 +189,6 @@ void Pipeline::SetVolume(float volume) {
   }
 }
 
-Preload Pipeline::GetPreload() const {
-  base::AutoLock auto_lock(lock_);
-  return preload_;
-}
-
-void Pipeline::SetPreload(Preload preload) {
-  base::AutoLock auto_lock(lock_);
-  preload_ = preload;
-  if (running_ && !tearing_down_) {
-    message_loop_->PostTask(FROM_HERE, base::Bind(
-        &Pipeline::PreloadChangedTask, this, preload));
-  }
-}
-
 base::TimeDelta Pipeline::GetCurrentTime() const {
   base::AutoLock auto_lock(lock_);
   return GetCurrentTime_Locked();
@@ -323,7 +309,6 @@ void Pipeline::ResetState() {
   total_bytes_      = 0;
   natural_size_.SetSize(0, 0);
   volume_           = 1.0f;
-  preload_          = AUTO;
   playback_rate_    = 0.0f;
   pending_playback_rate_ = 0.0f;
   status_           = PIPELINE_OK;
@@ -724,7 +709,6 @@ void Pipeline::InitializeTask(PipelineStatus last_stage_status) {
 
     // Initialization was successful, we are now considered paused, so it's safe
     // to set the initial playback rate and volume.
-    PreloadChangedTask(GetPreload());
     PlaybackRateChangedTask(GetPlaybackRate());
     VolumeChangedTask(GetVolume());
 
@@ -842,15 +826,6 @@ void Pipeline::VolumeChangedTask(float volume) {
     audio_renderer_->SetVolume(volume);
 }
 
-void Pipeline::PreloadChangedTask(Preload preload) {
-  DCHECK_EQ(MessageLoop::current(), message_loop_);
-  if (!running_ || tearing_down_)
-    return;
-
-  if (demuxer_)
-    demuxer_->SetPreload(preload);
-}
-
 void Pipeline::SeekTask(base::TimeDelta time,
                         const PipelineStatusCB& seek_cb) {
   DCHECK_EQ(MessageLoop::current(), message_loop_);