Decouple c/b/cros/audio from c/b/speech.

chrome/browser/chromeos/audio/audio_handler.h

Index: chrome/browser/chromeos/audio/audio_handler.h
diff --git a/chrome/browser/chromeos/audio/audio_handler.h b/chrome/browser/chromeos/audio/audio_handler.h
index ecb9f57af27d96219653abff70897bbac2c76295..b1e510e3e4aa1e383eeb3fa3ff6cea5d3196ccb6 100644
--- a/chrome/browser/chromeos/audio/audio_handler.h
+++ b/chrome/browser/chromeos/audio/audio_handler.h
@@ -6,6 +6,7 @@
 #define CHROME_BROWSER_CHROMEOS_AUDIO_AUDIO_HANDLER_H_
 
 #include "base/basictypes.h"
+#include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/prefs/public/pref_change_registrar.h"
@@ -36,7 +37,7 @@ class AudioHandler : public content::NotificationObserver {
     DISALLOW_COPY_AND_ASSIGN(VolumeObserver);
   };
 
-  static void Initialize();
+  static void Initialize(const base::Closure& on_connected);
   static void Shutdown();
 
   // Same as Initialize but using the specified audio mixer.  It takes
@@ -87,7 +88,7 @@ class AudioHandler : public content::NotificationObserver {
   friend struct DefaultSingletonTraits<AudioHandler>;
 
   // Takes ownership of |mixer|.
-  explicit AudioHandler(AudioMixer* mixer);
+  AudioHandler(AudioMixer* mixer, const base::Closure& on_connected);
   virtual ~AudioHandler();
 
   // Initializes the observers for the policy prefs.