First step towards moving AudioDevice from content/ to media/audio.

content/browser/renderer_host/media/audio_renderer_host.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 "content/browser/renderer_host/media/audio_renderer_host.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
@@ skipping 129 matching lines @@
 
 void AudioRendererHost::DoSendPlayingMessage(
     media::AudioOutputController* controller) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupByController(controller);
   if (!entry)
     return;
 
   Send(new AudioMsg_NotifyStreamStateChanged(
-    entry->stream_id, kAudioStreamPlaying));
+      entry->stream_id, media::AudioOutputIPCDelegate::kPlaying));
 }
 
 void AudioRendererHost::DoSendPausedMessage(
     media::AudioOutputController* controller) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupByController(controller);
   if (!entry)
     return;
 
   Send(new AudioMsg_NotifyStreamStateChanged(
-      entry->stream_id, kAudioStreamPaused));
+      entry->stream_id, media::AudioOutputIPCDelegate::kPaused));
 }
 
 void AudioRendererHost::DoHandleError(media::AudioOutputController* controller,
                                       int error_code) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   AudioEntry* entry = LookupByController(controller);
   if (!entry)
     return;
 
@@ skipping 132 matching lines @@
 
   // Make sure the volume is valid.
   if (volume < 0 || volume > 1.0)
     return;
   entry->controller->SetVolume(volume);
   if (media_observer_)
     media_observer_->OnSetAudioStreamVolume(this, stream_id, volume);
 }
 
 void AudioRendererHost::SendErrorMessage(int32 stream_id) {
-  Send(new AudioMsg_NotifyStreamStateChanged(stream_id, kAudioStreamError));
+  Send(new AudioMsg_NotifyStreamStateChanged(
+      stream_id, media::AudioOutputIPCDelegate::kError));
 }
 
 void AudioRendererHost::DeleteEntries() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   for (AudioEntryMap::iterator i = audio_entries_.begin();
        i != audio_entries_.end(); ++i) {
     CloseAndDeleteStream(i->second);
   }
 }
@@ skipping 49 matching lines @@
 
   // Iterate the map of entries.
   // TODO(hclam): Implement a faster look up method.
   for (AudioEntryMap::iterator i = audio_entries_.begin();
        i != audio_entries_.end(); ++i) {
     if (!i->second->pending_close && controller == i->second->controller.get())
       return i->second;
   }
   return NULL;
 }