media: Make MediaKeys ref-counted.

content/public/browser/render_process_host.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_
 
 #include <list>
 
 #include "base/basictypes.h"
@@ skipping 11 matching lines @@
 namespace base {
 class TimeDelta;
 }
 
 namespace gpu {
 union ValueState;
 }
 
 namespace media {
 class AudioOutputController;
-class BrowserCdm;
+class MediaKeys;
 }
 
 namespace content {
 class BrowserContext;
 class BrowserMessageFilter;
 class RenderProcessHostObserver;
 class RenderWidgetHost;
 class ServiceRegistry;
 class StoragePartition;
 struct GlobalRequestID;
@@ skipping 237 matching lines @@
   // with this object and passes it to the callback you specify, on
   // the same thread on which you called the method.
   typedef std::list<scoped_refptr<media::AudioOutputController>>
       AudioOutputControllerList;
   typedef base::Callback<void(const AudioOutputControllerList&)>
       GetAudioOutputControllersCallback;
   virtual void GetAudioOutputControllers(
       const GetAudioOutputControllersCallback& callback) const = 0;
 
 #if defined(ENABLE_BROWSER_CDMS)
-  // Returns the ::media::BrowserCdm instance associated with |render_frame_id|
-  // and |cdm_id|, or nullptr if not found.
-  virtual media::BrowserCdm* GetBrowserCdm(int render_frame_id,
-                                           int cdm_id) const = 0;
+  // Returns the CDM instance associated with |render_frame_id| and |cdm_id|,
+  // or nullptr if not found.
+  virtual scoped_refptr<media::MediaKeys> GetCdm(int render_frame_id,
+                                                 int cdm_id) const = 0;
 #endif
 
   // Returns the current number of active views in this process.  Excludes
   // any RenderViewHosts that are swapped out.
   size_t GetActiveViewCount();
 
   // Static management functions -----------------------------------------------
 
   // Flag to run the renderer in process.  This is primarily
   // for debugging purposes.  When running "in process", the
@@ skipping 44 matching lines @@
   static void SetMaxRendererProcessCount(size_t count);
 
   // Returns the current maximum number of renderer process hosts kept by the
   // content module.
   static size_t GetMaxRendererProcessCount();
 };
 
 }  // namespace content.
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_PROCESS_HOST_H_