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

content/browser/renderer_host/media/audio_input_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_input_renderer_host.h"
 
 #include "base/bind.h"
 #include "base/metrics/histogram.h"
 #include "base/process.h"
 #include "base/shared_memory.h"
@@ skipping 273 matching lines @@
   AudioEntry* entry = LookupById(stream_id);
   if (!entry) {
     SendErrorMessage(stream_id);
     return;
   }
 
   entry->controller->SetVolume(volume);
 }
 
 void AudioInputRendererHost::SendErrorMessage(int stream_id) {
-  Send(new AudioInputMsg_NotifyStreamStateChanged(stream_id,
-                                                  kAudioStreamError));
+  Send(new AudioInputMsg_NotifyStreamStateChanged(
+      stream_id, media::AudioInputIPCDelegate::kError));
 }
 
 void AudioInputRendererHost::DeleteEntries() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   for (AudioEntryMap::iterator i = audio_entries_.begin();
        i != audio_entries_.end(); ++i) {
     CloseAndDeleteStream(i->second);
   }
 }
@@ skipping 20 matching lines @@
   if (it == session_entries_.end())
     return;
 
   int stream_id = it->second;
   AudioEntry* entry = LookupById(stream_id);
 
   if (entry) {
     // Device has been stopped, close the input stream.
     CloseAndDeleteStream(entry);
     // Notify the renderer that the state of the input stream has changed.
-    Send(new AudioInputMsg_NotifyStreamStateChanged(stream_id,
-                                                    kAudioStreamPaused));
+    Send(new AudioInputMsg_NotifyStreamStateChanged(
+        stream_id, media::AudioInputIPCDelegate::kStopped));
   }
 
   // Delete the session entry.
   session_entries_.erase(it);
 }
 
 void AudioInputRendererHost::StopAndDeleteDevice(int session_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   media_stream_manager_->audio_input_device_manager()->Stop(session_id);
@@ skipping 59 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   for (SessionEntryMap::iterator it = session_entries_.begin();
        it != session_entries_.end(); ++it) {
     if (stream_id == it->second) {
       return it->first;
     }
   }
   return 0;
 }