Use TracingController for startup tracing

content/browser/browser_main_loop.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_BROWSER_MAIN_LOOP_H_
 #define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/browser_process_sub_thread.h"
 #include "content/public/browser/browser_main_runner.h"
 
 class CommandLine;
 
 namespace base {
+class FilePath;
 class HighResolutionTimerManager;
 class MessageLoop;
 class PowerMonitor;
 class SystemMonitor;
 namespace debug {
 class TraceMemoryController;
 class TraceEventSystemStatsMonitor;
 }  // namespace debug
 }  // namespace base
 
@@ skipping 64 matching lines @@
   }
   MediaStreamManager* media_stream_manager() const {
     return media_stream_manager_.get();
   }
   media::UserInputMonitor* user_input_monitor() const {
     return user_input_monitor_.get();
   }
   media::MIDIManager* midi_manager() const { return midi_manager_.get(); }
   base::Thread* indexed_db_thread() const { return indexed_db_thread_.get(); }
 
+  bool is_tracing_startup() const { return is_tracing_startup_; }
+
  private:
   class MemoryObserver;
   // For ShutdownThreadsAndCleanUp.
   friend class BrowserShutdownImpl;
 
   void InitializeMainThread();
 
   // Called just before creating the threads
   int PreCreateThreads();
 
   // Create all secondary threads.
   int CreateThreads();
 
   // Called right after the browser threads have been started.
   int BrowserThreadsStarted();
 
   int PreMainMessageLoopRun();
 
   void MainMessageLoopRun();
 
+  void InitStartupTracing(const CommandLine& command_line);
+  void EndStartupTracing(const base::FilePath& trace_file);
+
   // Members initialized on construction ---------------------------------------
   const MainFunctionParams& parameters_;
   const CommandLine& parsed_command_line_;
   int result_code_;
   // True if the non-UI threads were created.
   bool created_threads_;
 
   // Members initialized in |MainMessageLoopStart()| ---------------------------
   scoped_ptr<base::MessageLoop> main_message_loop_;
   scoped_ptr<base::SystemMonitor> system_monitor_;
@@ skipping 35 matching lines @@
   scoped_ptr<BrowserProcessSubThread> file_user_blocking_thread_;
   scoped_ptr<BrowserProcessSubThread> file_thread_;
   scoped_ptr<BrowserProcessSubThread> process_launcher_thread_;
   scoped_ptr<BrowserProcessSubThread> cache_thread_;
   scoped_ptr<BrowserProcessSubThread> io_thread_;
   scoped_ptr<base::Thread> indexed_db_thread_;
   scoped_ptr<MemoryObserver> memory_observer_;
   scoped_ptr<base::debug::TraceMemoryController> trace_memory_controller_;
   scoped_ptr<base::debug::TraceEventSystemStatsMonitor> system_stats_monitor_;
 
+  bool is_tracing_startup_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_