[Presentation API] PresentationRequest::getAvailability() should return the same promise

third_party/WebKit/Source/modules/presentation/PresentationRequest.h

 // Copyright 2015 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 PresentationRequest_h
 #define PresentationRequest_h
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptPromiseProperty.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "core/events/EventTarget.h"
+#include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
 #include "platform/heap/Heap.h"
 #include "platform/weborigin/KURL.h"
 
 namespace blink {
 
+class DOMException;
+class PresentationAvailability;
+class PresentationRequest;
+
+using PresentationAvailabilityProperty =
+    ScriptPromiseProperty<Member<PresentationRequest>,
+                          Member<PresentationAvailability>,
+                          Member<DOMException>>;
+
 // Implements the PresentationRequest interface from the Presentation API from
 // which websites can start or join presentation connections.
-class PresentationRequest final : public EventTargetWithInlineData,
-                                  public ActiveScriptWrappable,
-                                  public ActiveDOMObject {
+class MODULES_EXPORT PresentationRequest final

[mlamouri (slow - plz ping), 2016/12/13 13:56:12]

Why did this become MODULES_EXPORT?

[zhaobin, 2016/12/14 02:25:09]

Needed in unit tests.

+    : public EventTargetWithInlineData,
+      public ActiveScriptWrappable,
+      public ActiveDOMObject {
   USING_GARBAGE_COLLECTED_MIXIN(PresentationRequest);
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   ~PresentationRequest() = default;
 
   static PresentationRequest* create(ExecutionContext*,
                                      const String& url,
                                      ExceptionState&);
 
@@ skipping 15 matching lines @@
   DECLARE_VIRTUAL_TRACE();
 
  protected:
   // EventTarget implementation.
   void addedEventListener(const AtomicString& eventType,
                           RegisteredEventListener&) override;
 
  private:
   PresentationRequest(ExecutionContext*, const KURL&);
 
+  Member<PresentationAvailabilityProperty> m_availabilityProperty;
   KURL m_url;
 };
 
 }  // namespace blink
 
 #endif  // PresentationRequest_h