Encrypted Media: Implement IPC based SetCdm().

content/renderer/media/android/webmediaplayer_android.h

Index: content/renderer/media/android/webmediaplayer_android.h
diff --git a/content/renderer/media/android/webmediaplayer_android.h b/content/renderer/media/android/webmediaplayer_android.h
index 012e24ebc9c259e78228c9a632b1e1c74f36a322..189fd5627f2e639731a5d43f34b6da3a2276fca0 100644
--- a/content/renderer/media/android/webmediaplayer_android.h
+++ b/content/renderer/media/android/webmediaplayer_android.h
@@ -36,6 +36,7 @@ class MessageLoopProxy;
 }
 
 namespace blink {
+class WebContentDecryptionModule;
 class WebFrame;
 class WebURL;
 }
@@ -53,8 +54,9 @@ class WebLayerImpl;
 }
 
 namespace content {
-class WebMediaPlayerDelegate;
 class RendererMediaPlayerManager;
+class WebContentDecryptionModuleImpl;
+class WebMediaPlayerDelegate;
 
 // This class implements blink::WebMediaPlayer by keeping the android
 // media player in the browser process. It listens to all the status changes
@@ -216,6 +218,8 @@ class WebMediaPlayerAndroid
   virtual MediaKeyException cancelKeyRequest(
       const blink::WebString& key_system,
       const blink::WebString& session_id);
+  virtual void setContentDecryptionModule(
+      blink::WebContentDecryptionModule* cdm);
 
   void OnKeyAdded(const std::string& session_id);
   void OnKeyError(const std::string& session_id,
@@ -438,11 +442,16 @@ class WebMediaPlayerAndroid
   // through GenerateKeyRequest() directly from WebKit.
   std::string init_data_type_;
 
-  media::DecryptorReadyCB decryptor_ready_cb_;
-
   // Manages decryption keys and decrypts encrypted frames.
   scoped_ptr<ProxyDecryptor> proxy_decryptor_;
 
+  // Non-owned pointer to the CDM. Updated via calls to
+  // setContentDecryptionModule().
+  WebContentDecryptionModuleImpl* web_cdm_;
+
+  // Used by clear key implementation.
+  media::DecryptorReadyCB decryptor_ready_cb_;
+
   base::WeakPtrFactory<WebMediaPlayerAndroid> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerAndroid);