[Blink, RemotePlayback]Split onstatechange to separate events

third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.h

 // Copyright 2016 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 RemotePlayback_h
 #define RemotePlayback_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
@@ skipping 43 matching lines @@
 
   // Shows the UI allowing user to change the remote playback state of the media
   // element (by picking a remote playback device from the list, for example).
   ScriptPromise prompt(ScriptState*);
 
   String state() const;
 
   // ScriptWrappable implementation.
   bool hasPendingActivity() const final;
 
-  DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange);
+  DEFINE_ATTRIBUTE_EVENT_LISTENER(connecting);
+  DEFINE_ATTRIBUTE_EVENT_LISTENER(connect);
+  DEFINE_ATTRIBUTE_EVENT_LISTENER(disconnect);
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   friend class RemotePlaybackTest;
 
   explicit RemotePlayback(HTMLMediaElement&);
 
   // Calls the specified availability callback with the current availability.
   // Need a void() method to post it as a task.
   void notifyInitialAvailability(int callbackId);
 
   // WebRemotePlaybackClient implementation.
   void stateChanged(WebRemotePlaybackState) override;
   void availabilityChanged(bool available) override;
   void promptCancelled() override;
 
   RefPtr<ScriptState> m_scriptState;
   WebRemotePlaybackState m_state;
   bool m_availability;
   HeapHashMap<int, Member<RemotePlaybackAvailabilityCallback>>
       m_availabilityCallbacks;
   Member<HTMLMediaElement> m_mediaElement;
   Member<ScriptPromiseResolver> m_promptPromiseResolver;
 };
 
 }  // namespace blink
 
 #endif  // RemotePlayback_h