Chrome tracing for system-wide performance stats.

base/debug/trace_event.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.
 
 // This header file defines the set of trace_event macros without specifying
 // how the events actually get collected and stored. If you need to expose trace
 // events to some other universe, you can copy-and-paste this file as well as
 // trace_event.h, modifying the macros contained there as necessary for the
 // target platform. The end result is that multiple libraries can funnel events
 // through to a shared trace event collector.
@@ skipping 177 matching lines @@
 // and resolving the category.
 
 #ifndef BASE_DEBUG_TRACE_EVENT_H_
 #define BASE_DEBUG_TRACE_EVENT_H_
 
 #include <string>
 
 #include "base/atomicops.h"
 #include "base/debug/trace_event_impl.h"
 #include "base/debug/trace_event_memory.h"
+#include "base/debug/trace_event_system_stats_monitor.h"
 #include "build/build_config.h"
 
 // By default, const char* argument values are assumed to have long-lived scope
 // and will not be copied. Use this macro to force a const char* to be copied.
 #define TRACE_STR_COPY(str) \
     trace_event_internal::TraceStringWithCopy(str)
 
 // This will mark the trace event as disabled by default. The user will need
 // to explicitly enable the event.
 #define TRACE_DISABLED_BY_DEFAULT(name) "disabled-by-default-" name
@@ skipping 1333 matching lines @@
   const char* name_;
   IDType id_;
 
   DISALLOW_COPY_AND_ASSIGN(TraceScopedTrackableObject);
 };
 
 } // namespace debug
 } // namespace base
 
 #endif /* BASE_DEBUG_TRACE_EVENT_H_ */