Update MediaKeySession method names to latest EME spec.

Source/modules/encryptedmedia/MediaKeySession.h

 /*
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 46 matching lines @@
 public:
     static PassRefPtr<MediaKeySession> create(ExecutionContext*, ContentDecryptionModule*, MediaKeys*);
     ~MediaKeySession();
 
     const String& keySystem() const { return m_keySystem; }
     String sessionId() const;
 
     void setError(MediaKeyError*);
     MediaKeyError* error() { return m_error.get(); }
 
-    void generateKeyRequest(const String& mimeType, Uint8Array* initData);
+    void initializeNewSession(const String& mimeType, Uint8Array* initData);
     void update(Uint8Array* key, ExceptionState&);
-    void close();
+    void release();
 
     void enqueueEvent(PassRefPtr<Event>);
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitkeyadded);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitkeyerror);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(webkitkeymessage);
 
     virtual const AtomicString& interfaceName() const OVERRIDE;
     virtual ExecutionContext* executionContext() const OVERRIDE;
 
 private:
     MediaKeySession(ExecutionContext*, ContentDecryptionModule*, MediaKeys*);
-    void keyRequestTimerFired(Timer<MediaKeySession>*);
+    void initializeNewSessionTimerFired(Timer<MediaKeySession>*);
     void addKeyTimerFired(Timer<MediaKeySession>*);
 
     // ContentDecryptionModuleSessionClient
     virtual void keyAdded() OVERRIDE;
     virtual void keyError(MediaKeyErrorCode, unsigned long systemCode) OVERRIDE;
     virtual void keyMessage(const unsigned char* message, size_t messageLength, const KURL& destinationURL) OVERRIDE;
 
     String m_keySystem;
     RefPtr<MediaKeyError> m_error;
     OwnPtr<GenericEventQueue> m_asyncEventQueue;
     OwnPtr<ContentDecryptionModuleSession> m_session;
     // Used to remove the reference from the parent MediaKeys when close()'d.
     MediaKeys* m_keys;
 
-    struct PendingKeyRequest {
-        PendingKeyRequest(const String& mimeType, Uint8Array* initData) : mimeType(mimeType), initData(initData) { }
+    struct InitializeNewSessionData {
+        InitializeNewSessionData(const String& mimeType, Uint8Array* initData) : mimeType(mimeType), initData(initData) { }

[ddorwin, 2014/01/09 01:35:31]

Is '*' correct? (I don't know.)

Also, if this RefPtr'd object is shared with JS, I think it's possible that the
data could be changed, which we don't want. Maybe we need to make a copy.
(Again, I don't have the answer.)
Consider:
  createSession(type, array);
  array[0]=9;
  // Timer fires.

[xhwang, 2014/01/09 02:32:17]

Added FIXME.

         String mimeType;
         RefPtr<Uint8Array> initData;
     };
-    Deque<PendingKeyRequest> m_pendingKeyRequests;
-    Timer<MediaKeySession> m_keyRequestTimer;
+    Deque<InitializeNewSessionData> m_pendingInitializeNewSessionData;

[ddorwin, 2014/01/09 01:35:31]

We don't actually need a queue because this can only be called once per object.
We don't need to change that in this renaming CL, though. Also, this queue code
would work if we move this to MediaKeys.

[xhwang, 2014/01/09 02:32:17]

Done.

+    Timer<MediaKeySession> m_initializeNewSessionTimer;
 
     Deque<RefPtr<Uint8Array> > m_pendingKeys;
     Timer<MediaKeySession> m_addKeyTimer;
 };
 
 }
 
 #endif // MediaKeySession_h