Presentation API: Blink changes to allow getAvailability() to be rejected.

Source/modules/presentation/PresentationError.cpp

 // 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.
 
 #include "config.h"
 #include "modules/presentation/PresentationError.h"
 
 #include "core/dom/DOMException.h"
 #include "core/dom/ExceptionCode.h"
 #include "public/platform/modules/presentation/WebPresentationError.h"
 #include "wtf/OwnPtr.h"
 
 namespace blink {
 
 // static
-DOMException* PresentationError::take(WebPresentationError* errorRaw)
+DOMException* PresentationError::take(const WebPresentationError& error)
 {
-    ASSERT(errorRaw);
-    OwnPtr<WebPresentationError> error = adoptPtr(errorRaw);
-
     ExceptionCode code = UnknownError;
-    switch (error->errorType) {
+    switch (error.errorType) {
     case WebPresentationError::ErrorTypeNoAvailableScreens:
     case WebPresentationError::ErrorTypeNoPresentationFound:
         code = NotFoundError;
         break;
     case WebPresentationError::ErrorTypeSessionRequestCancelled:
         code = AbortError;
         break;
+    case WebPresentationError::ErrorTypeAvailabilityNotSupported:
+        code = NotSupportedError;
+        break;
     case WebPresentationError::ErrorTypeUnknown:
         code = UnknownError;
         break;
     }
 
-    return DOMException::create(code, error->message);
-}
-
-// static
-void PresentationError::dispose(WebPresentationError* error)
-{
-    delete error;
+    return DOMException::create(code, error.message);
 }
 
 } // namespace blink