Remove the AudioManager singleton.

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
===================================================================
--- chrome/browser/browser_process_impl.cc	(revision 114012)
+++ chrome/browser/browser_process_impl.cc	(working copy)
@@ -81,6 +81,7 @@
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/common/url_fetcher.h"
+#include "media/audio/audio_manager.h"
 #include "net/socket/client_socket_pool_manager.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "ui/base/clipboard/clipboard.h"
@@ -702,6 +703,14 @@
 #endif
 }
 
+AudioManager* BrowserProcessImpl::audio_manager() {
+  DCHECK(CalledOnValidThread());
+  if (!audio_manager_)
+    audio_manager_ = AudioManager::Create();
+
+  return audio_manager_;
+}
+
 void BrowserProcessImpl::CreateResourceDispatcherHost() {
   DCHECK(!created_resource_dispatcher_host_ &&
          resource_dispatcher_host_.get() == NULL);