[Android,RemotePlayback] Resolve HTMLMediaElement.remote.connect() with false when device is not se…

third_party/WebKit/public/platform/modules/remoteplayback/WebRemotePlaybackClient.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 WebRemotePlaybackClient_h
 #define WebRemotePlaybackClient_h
 
 namespace blink {
 
 enum class WebRemotePlaybackState;
 
 // The interface between the HTMLMediaElement and its HTMLMediaElementRemotePlayback supplement.
 class WebRemotePlaybackClient {
 public:
     virtual ~WebRemotePlaybackClient() = default;
 
     // Notifies the client that the media element state has changed.
     virtual void stateChanged(WebRemotePlaybackState) = 0;
 
     // Notifies the client of the remote playback device availability change.
     virtual void availabilityChanged(bool availability) = 0;
+
+    // Notifies the client that the user cancelled connection to remote device.
+    virtual void connectCancelled() = 0;
 };
 
 } // namespace blink
 
 #endif // WebRemotePlaybackState_h