Encrypted Media: Implement IPC based SetCdm().

content/renderer/media/webcontentdecryptionmodule_impl.h

Index: content/renderer/media/webcontentdecryptionmodule_impl.h
diff --git a/content/renderer/media/webcontentdecryptionmodule_impl.h b/content/renderer/media/webcontentdecryptionmodule_impl.h
index 3a07a24c9b77067c2863aec4aa07671198e3111c..38df1a0d16d38b2526c565ad216648262aa57781 100644
--- a/content/renderer/media/webcontentdecryptionmodule_impl.h
+++ b/content/renderer/media/webcontentdecryptionmodule_impl.h
@@ -43,6 +43,12 @@ class WebContentDecryptionModuleImpl
   // after WebContentDecryptionModule is freed. http://crbug.com/330324
   media::Decryptor* GetDecryptor();
 
+#if defined(OS_ANDROID)

[damienv1, 2014/03/31 18:25:28]

This should be guarded by a feature flag like ENABLE_IPC_CDM.

+  // Returns the CDM ID associated with this object. May be kInvalidCdmId if no
+  // CDM ID is associated, such as when Clear Key is used.
+  int GetCdmId() const;
+#endif  // defined(OS_ANDROID)
+
   // blink::WebContentDecryptionModule implementation.
   virtual blink::WebContentDecryptionModuleSession* createSession(
       blink::WebContentDecryptionModuleSession::Client* client);