media: Reject pending CDM promise during destruction.

third_party/WebKit/public/platform/WebContentDecryptionModuleResult.h

 // Copyright 2014 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 WebContentDecryptionModuleResult_h
 #define WebContentDecryptionModuleResult_h
 
 #include "WebCommon.h"
 #include "WebContentDecryptionModuleException.h"
 #include "WebPrivatePtr.h"
@@ skipping 27 matching lines @@
     {
         reset();
     }
 
     WebContentDecryptionModuleResult& operator=(const WebContentDecryptionModuleResult& o)
     {
         assign(o);
         return *this;
     }
 
+    // Returns whether the operation has been completed (success or fail).
+    BLINK_PLATFORM_EXPORT bool isCompleted();
+
     // Called when the CDM completes an operation and has no additional data to
     // pass back.
     BLINK_PLATFORM_EXPORT void complete();
 
     // Called when a CDM is created.
     BLINK_PLATFORM_EXPORT void completeWithContentDecryptionModule(WebContentDecryptionModule*);
 
     // Called when the CDM completes a session operation.
     BLINK_PLATFORM_EXPORT void completeWithSession(SessionStatus);
 
     // Called when the operation fails.
     BLINK_PLATFORM_EXPORT void completeWithError(WebContentDecryptionModuleException, unsigned long systemCode, const WebString& message);
 
 #if INSIDE_BLINK
     BLINK_PLATFORM_EXPORT explicit WebContentDecryptionModuleResult(ContentDecryptionModuleResult*);
 #endif
 
 private:
     BLINK_PLATFORM_EXPORT void reset();
     BLINK_PLATFORM_EXPORT void assign(const WebContentDecryptionModuleResult&);
 
     WebPrivatePtr<ContentDecryptionModuleResult, WebPrivatePtrDestructionCrossThread> m_impl;
 };
 
 } // namespace blink
 
 #endif // WebContentDecryptionModuleSession_h