Revert of DevTools: Protocol handler generator for content

content/browser/devtools/protocol/tracing_handler.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_BROWSER_DEVTOOLS_PROTOCOL_TRACING_HANDLER_H_
-#define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_TRACING_HANDLER_H_
-
-#include "content/browser/devtools/protocol/devtools_protocol_handler_impl.h"
-
-namespace content {
-namespace devtools {
-namespace tracing {
-
-class TracingHandler {
- public:
-  typedef DevToolsProtocolClient::Response Response;
-
-  TracingHandler();
-  virtual ~TracingHandler();
-
-  void SetClient(scoped_ptr<Client> client);
-
-  Response Start(const std::string& categories,
-                 const std::string& options,
-                 const double* buffer_usage_reporting_interval);
-
-  Response End();
-
-  scoped_refptr<DevToolsProtocol::Response> GetCategories(
-      scoped_refptr<DevToolsProtocol::Command> command);
-
- private:
-  scoped_ptr<Client> client_;
-
-  DISALLOW_COPY_AND_ASSIGN(TracingHandler);
-};
-
-}  // namespace tracing
-}  // namespace devtools
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_TRACING_HANDLER_H_