Modify MainThreadWebSocketChannel to use enumeration for denotating its current state

Source/modules/websockets/MainThreadWebSocketChannel.h

 /*
  * Copyright (C) 2011, 2012 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 155 matching lines @@
     // data in order. Calling this method directly jumps in the process.
     bool sendFrame(WebSocketFrame::OpCode, const char* data, size_t dataLength);
 
     enum BlobLoaderStatus {
         BlobLoaderNotStarted,
         BlobLoaderStarted,
         BlobLoaderFinished,
         BlobLoaderFailed
     };
 
+    enum ChannelState {
+        ChannelIdle,
+        ChannelClosing,
+        ChannelClosed
+    };
+
     Document* m_document;
     WebSocketChannelClient* m_client;
     OwnPtr<WebSocketHandshake> m_handshake;
     RefPtr<SocketStreamHandle> m_handle;
     Vector<char> m_buffer;
 
     Timer<MainThreadWebSocketChannel> m_resumeTimer;
     bool m_suspended;
-    bool m_closing;
     bool m_didFailOfClientAlreadyRun;
     bool m_receivedClosingHandshake;
     Timer<MainThreadWebSocketChannel> m_closingTimer;
-    bool m_closed;
+    ChannelState m_state;
     bool m_shouldDiscardReceivedData;
     unsigned long m_unhandledBufferedAmount;
 
     unsigned long m_identifier; // m_identifier == 0 means that we could not obtain a valid identifier.
 
     // Private members only for hybi-10 protocol.
     bool m_hasContinuousFrame;
     WebSocketFrame::OpCode m_continuousFrameOpCode;
     Vector<char> m_continuousFrameData;
     unsigned short m_closeEventCode;
     String m_closeEventReason;
 
     Deque<OwnPtr<QueuedFrame> > m_outgoingFrameQueue;
     OutgoingFrameQueueStatus m_outgoingFrameQueueStatus;
 
     // FIXME: Load two or more Blobs simultaneously for better performance.
     OwnPtr<FileReaderLoader> m_blobLoader;
     BlobLoaderStatus m_blobLoaderStatus;
 
     String m_sourceURLAtConnection;
     unsigned m_lineNumberAtConnection;
     WebSocketPerMessageDeflate m_perMessageDeflate;
     WebSocketDeflateFramer m_deflateFramer;
 };
 
 } // namespace WebCore
 
 #endif // MainThreadWebSocketChannel_h