[Blink, RemotePlayback] Handle disabling remote playback

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

 // 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.
 
 #include "modules/remoteplayback/RemotePlayback.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/modules/v8/RemotePlaybackAvailabilityCallback.h"
 #include "core/HTMLNames.h"
 #include "core/dom/DOMException.h"
@@ skipping 237 matching lines @@
 
 void RemotePlayback::promptCancelled() {
   if (!m_promptPromiseResolver)
     return;
 
   m_promptPromiseResolver->reject(
       DOMException::create(NotAllowedError, "The prompt was dismissed."));
   m_promptPromiseResolver = nullptr;
 }
 
+void RemotePlayback::remotePlaybackDisabled() {
+  if (m_promptPromiseResolver) {
+    m_promptPromiseResolver->reject(DOMException::create(
+        InvalidStateError, "disableRemotePlayback attribute is present."));
+    m_promptPromiseResolver = nullptr;
+  }
+
+  m_availabilityCallbacks.clear();
+
+  // TODO(avayvod): stop remote playback too. https://crbug.com/657566.
+}
+
 void RemotePlayback::setV8ReferencesForCallbacks(
     v8::Isolate* isolate,
     const v8::Persistent<v8::Object>& wrapper) {
   for (auto callback : m_availabilityCallbacks.values())
     callback->setWrapperReference(isolate, wrapper);
 }
 
 DEFINE_TRACE(RemotePlayback) {
   visitor->trace(m_availabilityCallbacks);
   visitor->trace(m_promptPromiseResolver);
   visitor->trace(m_mediaElement);
   EventTargetWithInlineData::trace(visitor);
 }
 
 }  // namespace blink