Separate BrowserCdmManager from BrowserMediaPlayerManager.

content/browser/media/android/media_web_contents_observer.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 CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_WEB_CONTENTS_OBSERVER_H_
 #define CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_WEB_CONTENTS_OBSERVER_H_
 
 #include "base/compiler_specific.h"
 #include "base/containers/scoped_ptr_hash_map.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/web_contents_observer.h"
 
 namespace content {
 
+class BrowserCdmManager;
 class BrowserMediaPlayerManager;
 class RenderViewHost;
 
 // This class manages all RenderFrame based media related managers at the
 // browser side. It receives IPC messages from media RenderFrameObservers and
 // forwards them to the corresponding managers. The managers are responsible
 // for sending IPCs back to the RenderFrameObservers at the render side.
 class CONTENT_EXPORT MediaWebContentsObserver : public WebContentsObserver {
  public:
   explicit MediaWebContentsObserver(RenderViewHost* render_view_host);
   virtual ~MediaWebContentsObserver();
 
   // WebContentsObserver implementations.
   virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) OVERRIDE;
   virtual bool OnMessageReceived(const IPC::Message& message,
                                  RenderFrameHost* render_frame_host) OVERRIDE;
 
+  // Helper functions to handle various IPC messages. Returns whether the
+  // |message| is handled in the function.
+  bool OnMediaPlayerMessageReceived(const IPC::Message& message,
+                                    RenderFrameHost* render_frame_host);
+  bool OnCdmMessageReceived(const IPC::Message& message,
+                            RenderFrameHost* render_frame_host);
+  bool OnMediaPlayerSetCdmMessageReceived(const IPC::Message& message,
+                                          RenderFrameHost* render_frame_host);
+
   // Gets the media player manager associated with |render_frame_host|. Creates
   // a new one if it doesn't exist. The caller doesn't own the returned pointer.
   BrowserMediaPlayerManager* GetMediaPlayerManager(
       RenderFrameHost* render_frame_host);
 
+  // Gets the CDM manager associated with |render_frame_host|. Creates
+  // a new one if it doesn't exist. The caller doesn't own the returned pointer.
+  BrowserCdmManager* GetCdmManager(RenderFrameHost* render_frame_host);
+
+  void OnSetCdm(RenderFrameHost* render_frame_host, int player_id, int cdm_id);
+
   // Pauses all media player.
   void PauseVideo();
 
 #if defined(VIDEO_HOLE)
   void OnFrameInfoUpdated();
 #endif  // defined(VIDEO_HOLE)
 
  private:
   // Map from RenderFrameHost* to BrowserMediaPlayerManager.
   typedef base::ScopedPtrHashMap<uintptr_t, BrowserMediaPlayerManager>
       MediaPlayerManagerMap;
   MediaPlayerManagerMap media_player_managers_;
 
+  // Map from RenderFrameHost* to BrowserCdmManager.
+  typedef base::ScopedPtrHashMap<uintptr_t, BrowserCdmManager> CdmManagerMap;
+  CdmManagerMap cdm_managers_;
+
   DISALLOW_COPY_AND_ASSIGN(MediaWebContentsObserver);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_MEDIA_ANDROID_MEDIA_WEB_CONTENTS_OBSERVER_H_