[WebSocket] bufferedAmount should not decrease inside a task.

Source/modules/websockets/WorkerThreadableWebSocketChannel.h

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 63 matching lines @@
     // WebSocketChannel functions.
     virtual bool connect(const KURL&, const String& protocol) OVERRIDE;
     virtual WebSocketChannel::SendResult send(const String& message) OVERRIDE;
     virtual WebSocketChannel::SendResult send(const ArrayBuffer&, unsigned byteOffset, unsigned byteLength) OVERRIDE;
     virtual WebSocketChannel::SendResult send(PassRefPtr<BlobDataHandle>) OVERRIDE;
     virtual WebSocketChannel::SendResult send(PassOwnPtr<Vector<char> >) OVERRIDE
     {
         ASSERT_NOT_REACHED();
         return WebSocketChannel::SendFail;
     }
-    virtual unsigned long bufferedAmount() const OVERRIDE;
     virtual void close(int code, const String& reason) OVERRIDE;
     virtual void fail(const String& reason, MessageLevel, const String&, unsigned) OVERRIDE;
     virtual void disconnect() OVERRIDE; // Will suppress didClose().
     virtual void suspend() OVERRIDE { }
     virtual void resume() OVERRIDE { }
 
     virtual void trace(Visitor*) OVERRIDE;
 
     // Generated by the bridge. The Peer is destructed by an async call from
     // Bridge, and may outlive the bridge. All methods of this class must
@@ skipping 14 matching lines @@
         void sendBlob(PassRefPtr<BlobDataHandle>);
         void bufferedAmount();
         void close(int code, const String& reason);
         void fail(const String& reason, MessageLevel, const String& sourceURL, unsigned lineNumber);
         void disconnect();
 
         // WebSocketChannelClient functions.
         virtual void didConnect(const String& subprotocol, const String& extensions) OVERRIDE;
         virtual void didReceiveMessage(const String& message) OVERRIDE;
         virtual void didReceiveBinaryData(PassOwnPtr<Vector<char> >) OVERRIDE;
-        virtual void didUpdateBufferedAmount(unsigned long bufferedAmount) OVERRIDE;
+        virtual void didConsumeBufferedAmount(unsigned long) OVERRIDE;
         virtual void didStartClosingHandshake() OVERRIDE;
-        virtual void didClose(unsigned long unhandledBufferedAmount, ClosingHandshakeCompletionStatus, unsigned short code, const String& reason) OVERRIDE;
+        virtual void didClose(ClosingHandshakeCompletionStatus, unsigned short code, const String& reason) OVERRIDE;
         virtual void didReceiveMessageError() OVERRIDE;
 
     private:
         Peer(PassRefPtr<WeakReference<Peer> >, PassRefPtrWillBeRawPtr<ThreadableWebSocketChannelClientWrapper>, WorkerLoaderProxy&, ExecutionContext*, const String& sourceURL, unsigned lineNumber, PassOwnPtr<ThreadableWebSocketChannelSyncHelper>);
 
         const RefPtrWillBePersistent<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
         WorkerLoaderProxy& m_loaderProxy;
         RefPtrWillBePersistent<WebSocketChannel> m_mainWebSocketChannel;
         OwnPtr<ThreadableWebSocketChannelSyncHelper> m_syncHelper;
         WeakPtrFactory<Peer> m_weakFactory;
@@ skipping 46 matching lines @@
 
     const RefPtrWillBeMember<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
     RefPtr<Bridge> m_bridge;
     String m_sourceURLAtConnection;
     unsigned m_lineNumberAtConnection;
 };
 
 } // namespace WebCore
 
 #endif // WorkerThreadableWebSocketChannel_h