[Blink, RemotePlayback] Added the disableRemotePlayback check to prompt().

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 "core/HTMLNames.h"
 #include "core/dom/DOMException.h"
 #include "core/dom/Document.h"
 #include "core/events/Event.h"
 #include "core/html/HTMLMediaElement.h"
 #include "modules/EventTargetModules.h"
 #include "modules/remoteplayback/RemotePlaybackAvailability.h"
 #include "platform/UserGestureIndicator.h"
 
 namespace blink {
 
@@ skipping 57 matching lines @@
     // no default controls, we should also start tracking availability on demand
     // meaning the Promise returned by getAvailability() will be resolved asynchronously.
     RemotePlaybackAvailability* availability = RemotePlaybackAvailability::take(resolver, m_availability);
     m_availabilityObjects.append(availability);
     resolver->resolve(availability);
     return promise;
 }
 
 ScriptPromise RemotePlayback::prompt(ScriptState* scriptState)
 {
-    // TODO(avayvod): implement steps 3, 4, 5, 8, 9 of the algorithm.
+    // TODO(avayvod): implement steps 4, 5, 8, 9 of the algorithm.
     // https://crbug.com/647441
     ScriptPromiseResolver* resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
 
+    if (m_mediaElement->fastHasAttribute(HTMLNames::disableremoteplaybackAttr)) {
+        resolver->reject(DOMException::create(InvalidStateError, "disableRemotePlayback attribute is present."));
+        return promise;
+    }
+
     // TODO(avayvod): should we have a separate flag to disable the user gesture
     // requirement (for tests) or reuse the one for the PresentationRequest::start()?
     if (!UserGestureIndicator::utilizeUserGesture()) {
         resolver->reject(DOMException::create(InvalidAccessError, "RemotePlayback::prompt() requires user gesture."));
         return promise;
     }
 
     if (m_state == WebRemotePlaybackState::Disconnected) {
         m_promptPromiseResolvers.append(resolver);
         m_mediaElement->requestRemotePlayback();
@@ skipping 63 matching lines @@
 
 DEFINE_TRACE(RemotePlayback)
 {
     visitor->trace(m_availabilityObjects);
     visitor->trace(m_promptPromiseResolvers);
     visitor->trace(m_mediaElement);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace blink