Introduce webkit_glue bridges for the new WebSocket Implementation.

content/child/websocket_dispatcher.h

Index: content/child/websocket_dispatcher.h
diff --git a/content/child/websocket_dispatcher.h b/content/child/websocket_dispatcher.h
new file mode 100644
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+++ b/content/child/websocket_dispatcher.h
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+// Copyright (c) 2013 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 CONTENT_CHILD_WEBSOCKET_DISPATCHER_H_
+#define CONTENT_CHILD_WEBSOCKET_DISPATCHER_H_
+
+#include <stdint.h>
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "ipc/ipc_listener.h"
+
+namespace content {
+
+class WebSocketBridge;
+
+// Dispatches WebSocket related messages sent to a child process from the
+// main browser process.  There is one instance per child process. Messages
+// are dispatched on the main child thread.  The ChildThread class
+// creates an instance of WebSocketDispatcher and delegates calls to it.
+class WebSocketDispatcher : public IPC::Listener {
+ public:
+  WebSocketDispatcher();
+  virtual ~WebSocketDispatcher();
+
+  // Returns a unique channel id
+  int AddBridge(WebSocketBridge* bridge);
+  void RemoveBridge(int channel_id);
+
+  // IPC::Listener implementation.
+  virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
+
+ private:
+  WebSocketBridge* GetBridge(int channel_id, uint32 type);
+
+  std::map<int, WebSocketBridge*> bridges_;
+  int channel_id_max_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebSocketDispatcher);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_CHILD_WEBSOCKET_DISPATCHER_H_