[DevTools] Migrate DevToolsTracingHandler to generated handler.

content/browser/devtools/devtools_tracing_handler.h

-// Copyright (c) 2012 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_DEVTOOLS_TRACING_HANDLER_H_
-#define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_
-
-#include <set>
-#include <string>
-
-#include "base/debug/trace_event.h"
-#include "base/memory/weak_ptr.h"
-#include "content/browser/devtools/devtools_protocol.h"
-#include "content/public/browser/tracing_controller.h"
-
-namespace base {
-class RefCountedString;
-class Timer;
-}
-
-namespace content {
-
-// This class bridges DevTools remote debugging server with the trace
-// infrastructure.
-class DevToolsTracingHandler : public DevToolsProtocol::Handler {
- public:
-  enum Target { Browser, Renderer };
-  explicit DevToolsTracingHandler(Target target);
-  virtual ~DevToolsTracingHandler();
-
-  void OnClientDetached();
-
-  void OnTraceDataCollected(const std::string& trace_fragment);
-  void OnTraceComplete();
-
- private:
-  void OnRecordingEnabled(scoped_refptr<DevToolsProtocol::Command> command);
-  void OnBufferUsage(float usage);
-
-  scoped_refptr<DevToolsProtocol::Response> OnStart(
-      scoped_refptr<DevToolsProtocol::Command> command);
-  scoped_refptr<DevToolsProtocol::Response> OnEnd(
-      scoped_refptr<DevToolsProtocol::Command> command);
-
-  scoped_refptr<DevToolsProtocol::Response> OnGetCategories(
-      scoped_refptr<DevToolsProtocol::Command> command);
-
-  void OnCategoriesReceived(scoped_refptr<DevToolsProtocol::Command> command,
-                            const std::set<std::string>& category_set);
-
-  base::debug::TraceOptions TraceOptionsFromString(const std::string& options);
-
-  void SetupTimer(double usage_reporting_interval);
-
-  void DisableRecording(bool abort);
-
-  scoped_ptr<base::Timer> buffer_usage_poll_timer_;
-  Target target_;
-  bool is_recording_;
-
-  static const char* kDefaultCategories;
-  static const double kDefaultReportingInterval;
-  static const double kMinimumReportingInterval;
-
-  base::WeakPtrFactory<DevToolsTracingHandler> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(DevToolsTracingHandler);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_TRACING_HANDLER_H_