Revert "Revert 285479 "Make DataSource::Stop() synchronous.""

content/renderer/media/buffered_data_source.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/buffered_data_source.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "content/public/common/url_constants.h"
@@ skipping 189 matching lines @@
   UpdateDeferStrategy(false);
 }
 
 void BufferedDataSource::MediaIsPaused() {
   DCHECK(render_loop_->BelongsToCurrentThread());
   UpdateDeferStrategy(true);
 }
 
 /////////////////////////////////////////////////////////////////////////////
 // media::DataSource implementation.
-void BufferedDataSource::Stop(const base::Closure& closure) {
+void BufferedDataSource::Stop() {
   {
     base::AutoLock auto_lock(lock_);
     StopInternal_Locked();
   }
-  closure.Run();
 
   render_loop_->PostTask(
       FROM_HERE,
       base::Bind(&BufferedDataSource::StopLoader, weak_factory_.GetWeakPtr()));
 }
 
 void BufferedDataSource::SetBitrate(int bitrate) {
   render_loop_->PostTask(FROM_HERE,
                          base::Bind(&BufferedDataSource::SetBitrateTask,
                                     weak_factory_.GetWeakPtr(),
@@ skipping 302 matching lines @@
   }
 
   // If media is currently playing or the page indicated preload=auto or the
   // the server does not support the byte range request or we do not want to go
   // too far ahead of the read head, use threshold strategy to enable/disable
   // deferring when the buffer is full/depleted.
   loader_->UpdateDeferStrategy(BufferedResourceLoader::kCapacityDefer);
 }
 
 }  // namespace content