Refactoring AudioDirectiveHandler to support testing

components/copresence/handlers/directive_handler.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_H_
 #define COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
-#include "components/copresence/handlers/audio/audio_directive_handler.h"
 #include "components/copresence/mediums/audio/audio_manager.h"
 
 namespace copresence {
 
+class AudioDirectiveHandler;
 class Directive;
 
 // The directive handler manages transmit and receive directives
 // given to it by the manager.
 class DirectiveHandler {
  public:
   DirectiveHandler();
   virtual ~DirectiveHandler();
 
   // Initialize the |audio_handler_| with the appropriate callbacks.
@@ skipping 12 matching lines @@
 
  private:
   scoped_ptr<AudioDirectiveHandler> audio_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(DirectiveHandler);
 };
 
 }  // namespace copresence
 
 #endif  // COMPONENTS_COPRESENCE_HANDLERS_DIRECTIVE_HANDLER_H_