Move debug-related stuff from base to the base/debug directory and use the...

base/trace_event.h

Index: base/trace_event.h
===================================================================
--- base/trace_event.h	(revision 63176)
+++ base/trace_event.h	(working copy)
@@ -1,142 +0,0 @@
-// Copyright (c) 2006-2008 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.
-
-// Trace events to track application performance.  Events consist of a name
-// a type (BEGIN, END or INSTANT), a tracking id and extra string data.
-// In addition, the current process id, thread id, a timestamp down to the
-// microsecond and a file and line number of the calling location.
-//
-// The current implementation logs these events into a log file of the form
-// trace_<pid>.log where it's designed to be post-processed to generate a
-// trace report.  In the future, it may use another mechansim to facilitate
-// real-time analysis.
-
-#ifndef BASE_TRACE_EVENT_H_
-#define BASE_TRACE_EVENT_H_
-#pragma once
-
-#include "build/build_config.h"
-
-#if defined(OS_WIN)
-// On Windows we always pull in an alternative implementation
-// which logs to Event Tracing for Windows.
-//
-// Note that the Windows implementation is always enabled, irrespective the
-// value of the CHROMIUM_ENABLE_TRACE_EVENT define. The Windows implementation
-// is controlled by Event Tracing for Windows, which will turn tracing on only
-// if there is someone listening for the events it generates.
-#include "base/trace_event_win.h"
-#else  // defined(OS_WIN)
-
-#include <string>
-
-#include "base/lock.h"
-#include "base/scoped_ptr.h"
-#include "base/singleton.h"
-#include "base/time.h"
-#include "base/timer.h"
-
-#ifndef CHROMIUM_ENABLE_TRACE_EVENT
-#define TRACE_EVENT_BEGIN(name, id, extra) ((void) 0)
-#define TRACE_EVENT_END(name, id, extra) ((void) 0)
-#define TRACE_EVENT_INSTANT(name, id, extra) ((void) 0)
-
-#else  // CHROMIUM_ENABLE_TRACE_EVENT
-// Use the following macros rather than using the TraceLog class directly as the
-// underlying implementation may change in the future.  Here's a sample usage:
-// TRACE_EVENT_BEGIN("v8.run", documentId, scriptLocation);
-// RunScript(script);
-// TRACE_EVENT_END("v8.run", documentId, scriptLocation);
-
-// Record that an event (of name, id) has begun.  All BEGIN events should have
-// corresponding END events with a matching (name, id).
-#define TRACE_EVENT_BEGIN(name, id, extra) \
-  Singleton<base::TraceLog>::get()->Trace(name, \
-                                          base::TraceLog::EVENT_BEGIN, \
-                                          reinterpret_cast<const void*>(id), \
-                                          extra, \
-                                          __FILE__, \
-                                          __LINE__)
-
-// Record that an event (of name, id) has ended.  All END events should have
-// corresponding BEGIN events with a matching (name, id).
-#define TRACE_EVENT_END(name, id, extra) \
-  Singleton<base::TraceLog>::get()->Trace(name, \
-                                          base::TraceLog::EVENT_END, \
-                                          reinterpret_cast<const void*>(id), \
-                                          extra, \
-                                          __FILE__, \
-                                          __LINE__)
-
-// Record that an event (of name, id) with no duration has happened.
-#define TRACE_EVENT_INSTANT(name, id, extra) \
-  Singleton<base::TraceLog>::get()->Trace(name, \
-                                          base::TraceLog::EVENT_INSTANT, \
-                                          reinterpret_cast<const void*>(id), \
-                                          extra, \
-                                          __FILE__, \
-                                          __LINE__)
-#endif  // CHROMIUM_ENABLE_TRACE_EVENT
-
-namespace base {
-class ProcessMetrics;
-}
-
-namespace base {
-
-class TraceLog {
- public:
-  enum EventType {
-    EVENT_BEGIN,
-    EVENT_END,
-    EVENT_INSTANT
-  };
-
-  // Is tracing currently enabled.
-  static bool IsTracing();
-  // Start logging trace events.
-  static bool StartTracing();
-  // Stop logging trace events.
-  static void StopTracing();
-
-  // Log a trace event of (name, type, id) with the optional extra string.
-  void Trace(const std::string& name,
-             EventType type,
-             const void* id,
-             const std::wstring& extra,
-             const char* file,
-             int line);
-  void Trace(const std::string& name,
-             EventType type,
-             const void* id,
-             const std::string& extra,
-             const char* file,
-             int line);
-
- private:
-  // This allows constructor and destructor to be private and usable only
-  // by the Singleton class.
-  friend struct DefaultSingletonTraits<TraceLog>;
-
-  TraceLog();
-  ~TraceLog();
-  bool OpenLogFile();
-  void CloseLogFile();
-  bool Start();
-  void Stop();
-  void Heartbeat();
-  void Log(const std::string& msg);
-
-  bool enabled_;
-  FILE* log_file_;
-  Lock file_lock_;
-  TimeTicks trace_start_time_;
-  scoped_ptr<base::ProcessMetrics> process_metrics_;
-  RepeatingTimer<TraceLog> timer_;
-};
-
-} // namespace base
-#endif  // defined(OS_WIN)
-
-#endif  // BASE_TRACE_EVENT_H_