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

media/base/composite_filter_unittest.cc

 // Copyright (c) 2011 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 "base/bind.h"
 #include "base/message_loop.h"
 #include "media/base/composite_filter.h"
 #include "media/base/mock_callback.h"
 #include "media/base/mock_filter_host.h"
 #include "media/base/mock_filters.h"
@@ skipping 730 matching lines @@
 
   // Run callback to indicate that |filter_2_|'s Stop() has completed.
   RunFilter2Callback();
 }
 
 TEST_F(CompositeFilterTest, TestErrorWhilePlaying) {
   InSequence sequence;
 
   SetupAndAdd2Filters();
 
-  // Simulate an error on |filter_2_| while in kCreated state. This
-  // can happen if an error occurs during filter initialization.
-  EXPECT_CALL(*mock_filter_host_, SetError(PIPELINE_ERROR_OUT_OF_MEMORY));
-  filter_2_->host()->SetError(PIPELINE_ERROR_OUT_OF_MEMORY);
-
   DoPlay();
 
   // Simulate an error on |filter_2_| while playing.
   EXPECT_CALL(*mock_filter_host_, SetError(PIPELINE_ERROR_OUT_OF_MEMORY));
   filter_2_->host()->SetError(PIPELINE_ERROR_OUT_OF_MEMORY);
 
   DoPause();
 
   // Simulate an error on |filter_2_| while paused.
   EXPECT_CALL(*mock_filter_host_, SetError(PIPELINE_ERROR_NETWORK));
@@ skipping 27 matching lines @@
                    NewExpectedStatusCB(PIPELINE_OK));
 
   // Issue a Play() and expect no errors.
   composite_->Play(NewExpectedClosure());
 
   // Issue a Stop() and expect no errors.
   composite_->Stop(NewExpectedClosure());
 }
 
 }  // namespace media