Update AudioRenderer, VideoRenderer, and AudioDecoder Initialize() methods to use PipelineStatusCB.

media/base/mock_filters.cc

 // Copyright (c) 2012 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 "media/base/mock_filters.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/base/filter_host.h"
 
@@ skipping 153 matching lines @@
 }
 
 void RunFilterStatusCB(::testing::Unused, const FilterStatusCB& cb) {
   cb.Run(PIPELINE_OK);
 }
 
 void RunPipelineStatusCB(PipelineStatus status, const PipelineStatusCB& cb) {
   cb.Run(status);
 }
 
-void RunFilterCallback3(::testing::Unused, const base::Closure& callback,
-                        ::testing::Unused) {
-  callback.Run();
-
+void RunPipelineStatusCB3(::testing::Unused, const PipelineStatusCB& callback,
+                          ::testing::Unused) {
+  callback.Run(PIPELINE_OK);
 }
 
 void RunStopFilterCallback(const base::Closure& callback) {
   callback.Run();
 }
 
 MockFilter::MockFilter() {
 }
 
 MockFilter::~MockFilter() {}
 
 MockStatisticsCallback::MockStatisticsCallback() {}
 
 MockStatisticsCallback::~MockStatisticsCallback() {}
 
 }  // namespace media