Remove old WebSocket implementation from content/

content/child/web_socket_stream_handle_bridge.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 CONTENT_CHILD_WEB_SOCKET_STREAM_HANDLE_BRIDGE_H_
-#define CONTENT_CHILD_WEB_SOCKET_STREAM_HANDLE_BRIDGE_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/memory/ref_counted.h"
-
-class GURL;
-
-namespace content {
-
-class WebSocketStreamHandleBridge
-    : public base::RefCountedThreadSafe<WebSocketStreamHandleBridge> {
- public:
-  virtual void Connect(const GURL& url) = 0;
-
-  virtual bool Send(const std::vector<char>& data) = 0;
-
-  virtual void Close() = 0;
-
- protected:
-  friend class base::RefCountedThreadSafe<WebSocketStreamHandleBridge>;
-  WebSocketStreamHandleBridge() {}
-  virtual ~WebSocketStreamHandleBridge() {}
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(WebSocketStreamHandleBridge);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_CHILD_WEB_SOCKET_STREAM_HANDLE_BRIDGE_H_