Fix a memory leak caused by AudioRenedererHost.

chrome/browser/renderer_host/audio_renderer_host.cc

 // Copyright (c) 2006-2009 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/message_loop.h"
 #include "base/process.h"
 #include "chrome/browser/renderer_host/audio_renderer_host.h"
 
 AudioRendererHost::IPCAudioSource::IPCAudioSource(
     AudioRendererHost* host,
@@ skipping 174 matching lines @@
 
 void AudioRendererHost::OnInitialized() {
   DCHECK(MessageLoop::current() == io_loop_);
 
   // Increase the ref count of this object so it is active until we do
   // Release().
   AddRef();
 
   // Also create the AudioManager singleton in this thread.
   // TODO(hclam): figure out a better location to initialize the AudioManager
-  // singleton.
-  AudioManager::GetAudioManager();
+  // singleton. The following method call seems to create a memory leak.
+  // AudioManager::GetAudioManager();
 }
 
 void AudioRendererHost::OnDestroyed() {
   DCHECK(MessageLoop::current() == io_loop_);
 
   // Destroy audio streams only in the thread it should happen.
   // TODO(hclam): make sure we don't call IPC::Message::Sender inside
   // IPCAudioSource because it is most likely be destroyed.
   DestroyAllStreams();
 
   // Decrease the reference to this object, which may lead to self-destruction.
   Release();
 }