Use ChromeThread::DeleteOnIOThread in a few places where an object must be de...

chrome/browser/renderer_host/audio_renderer_host.h

 // Copyright (c) 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.
 //
 // AudioRendererHost serves audio related requests from AudioRenderer which
 // lives inside the render process and provide access to audio hardware. It maps
 // an internal ID to AudioRendererHost::IPCAudioSource in a map, which is the
 // actual object providing audio packets through IPC. It creates the actual
 // AudioOutputStream object when requested by the renderer provided with
 // render view id and stream id.
@@ skipping 56 matching lines @@
 #ifndef CHROME_BROWSER_RENDERER_HOST_AUDIO_RENDERER_HOST_H_
 #define CHROME_BROWSER_RENDERER_HOST_AUDIO_RENDERER_HOST_H_
 
 #include <map>
 
 #include "base/lock.h"
 #include "base/process.h"
 #include "base/ref_counted.h"
 #include "base/shared_memory.h"
 #include "base/waitable_event.h"
+#include "chrome/browser/chrome_thread.h"
 #include "ipc/ipc_message.h"
 #include "media/audio/audio_output.h"
 #include "media/audio/simple_sources.h"
 #include "testing/gtest/include/gtest/gtest_prod.h"
 
 class AudioManager;
 struct ViewHostMsg_Audio_CreateStream;
 
-class AudioRendererHost : public base::RefCountedThreadSafe<AudioRendererHost> {
+class AudioRendererHost
+    : public base::RefCountedThreadSafe<
+          AudioRendererHost, ChromeThread::DeleteOnIOThread> {
  private:
   class IPCAudioSource;
  public:
   // Called from UI thread from the owner of this object.
   AudioRendererHost();
 
-  // Destruction can happen on either UI thread or IO thread, but at destruction
-  // all associated sources are destroyed and streams are closed.
+  // Destruction always happens on the IO thread (see DeleteOnIOThread above).
   virtual ~AudioRendererHost();
 
   // Called from UI thread from the owner of this object to kick start
   // destruction of streams in IO thread.
   void Destroy();
 
   //---------------------------------------------------------------------------
   // The following public methods are called from ResourceMessageFilter in the
   // IO thread.
 
@@ skipping 204 matching lines @@
   void OnGetVolume(const IPC::Message& msg, int stream_id);
 
   // Notify packet has been prepared for stream, delegates to corresponding
   // IPCAudioSource::NotifyPacketReady(), see the method for more details.
   // ViewMsg_NotifyAudioStreamStateChanged with
   // AudioOutputStream::AUDIO_STREAM_ERROR is sent back to renderer if the
   // required IPCAudioSource is not found.
   void OnNotifyPacketReady(const IPC::Message& msg, int stream_id,
                            size_t packet_size);
 
-  // Called on IO thread when this object is created and initialized.
-  void OnInitialized();
-
   // Called on IO thread when this object needs to be destroyed and after
   // Destroy() is called from owner of this class in UI thread.
   void OnDestroyed();
 
   // Sends IPC messages using ipc_sender_.
   void OnSend(IPC::Message* message);
 
   // Closes the source, deletes it and removes it from the internal map.
   // Destruction of source and associated stream should always be done by this
   // method. *DO NOT* call this method from other than IPCAudioSource and from
@@ skipping 14 matching lines @@
 
   // A map of id to audio sources.
   typedef std::pair<int32, int32> SourceID;
   typedef std::map<SourceID, IPCAudioSource*> SourceMap;
   SourceMap sources_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererHost);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_AUDIO_RENDERER_HOST_H_