[RemotePlayback] Keep track of source compatibility and reject prompt() correspondingly

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/TraceWrapperMember.h"
 #include "core/events/EventTarget.h"
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
+#include "public/platform/modules/remoteplayback/WebRemotePlaybackAvailability.h"
 #include "public/platform/modules/remoteplayback/WebRemotePlaybackClient.h"
 #include "public/platform/modules/remoteplayback/WebRemotePlaybackState.h"
 #include "wtf/Compiler.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class ExecutionContext;
 class HTMLMediaElement;
@@ skipping 53 matching lines @@
   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 availabilityChanged(WebRemotePlaybackAvailability) override;
   void promptCancelled() override;
+  bool remotePlaybackAvailable() const override;
 
   // Prevent v8 from garbage collecting the availability callbacks.
   // TODO(avayvod): remove when crbug.com/468240 is fixed and the references
   // are maintained automatically.
   void setV8ReferencesForCallbacks(v8::Isolate*,
                                    const v8::Persistent<v8::Object>& wrapper);
 
   WebRemotePlaybackState m_state;
-  bool m_availability;
+  WebRemotePlaybackAvailability m_availability;
   HeapHashMap<int, TraceWrapperMember<RemotePlaybackAvailabilityCallback>>
       m_availabilityCallbacks;
   Member<HTMLMediaElement> m_mediaElement;
   Member<ScriptPromiseResolver> m_promptPromiseResolver;
 };
 
 }  // namespace blink
 
 #endif  // RemotePlayback_h