Use typedef to shorten WorkerThreadableWebSocketChannel inner classes.

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 131 matching lines @@
         // When the Bridge object calls Peer::destroy, the persistent handle is destroyed.
         // This is because we cannot dispatch a disconnect chain from Peer's destructor since
         // the disconnect chain touches on-heap objets.
         GC_PLUGIN_IGNORE("")
         Persistent<Peer> m_keepAlive;
 #else
         WeakPtrFactory<Peer> m_weakFactory;
 #endif
     };
 
-private:
     // Bridge for Peer. Running on the worker thread.
     class Bridge FINAL : public RefCountedWillBeGarbageCollectedFinalized<Bridge> {
     public:
         static PassRefPtrWillBeRawPtr<Bridge> create(PassRefPtrWillBeRawPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper, WorkerGlobalScope& workerGlobalScope)
         {
             return adoptRefWillBeNoop(new Bridge(workerClientWrapper, workerGlobalScope));
         }
         ~Bridge();
         // sourceURLAtConnection and lineNumberAtConnection parameters may
         // be shown when the connection fails.
@@ skipping 26 matching lines @@
 
         const RefPtrWillBeMember<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
         RefPtrWillBeMember<WorkerGlobalScope> m_workerGlobalScope;
         WorkerLoaderProxy& m_loaderProxy;
         RawPtrWillBeMember<ThreadableWebSocketChannelSyncHelper> m_syncHelper;
         // The value of this pointer is set when a Peer object is created in Peer::initilize()
         // in the main thread.
         WeakPtrWillBeWeakMember<Peer> m_peer;
     };
 
+private:
     WorkerThreadableWebSocketChannel(WorkerGlobalScope&, WebSocketChannelClient*, const String& sourceURL, unsigned lineNumber);
 
     const RefPtrWillBeMember<ThreadableWebSocketChannelClientWrapper> m_workerClientWrapper;
     RefPtrWillBeMember<Bridge> m_bridge;
     String m_sourceURLAtConnection;
     unsigned m_lineNumberAtConnection;
 };
 
 } // namespace blink
 
 #endif // WorkerThreadableWebSocketChannel_h