Remove support for TRACE_EVENT_IF_LONGER_THANx macros

base/debug/trace_event_impl.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 BASE_DEBUG_TRACE_EVENT_IMPL_H_
 #define BASE_DEBUG_TRACE_EVENT_IMPL_H_
 
 #include "build/build_config.h"
 
@@ skipping 236 matching lines @@
   // JSON.
   typedef base::Callback<void(const scoped_refptr<base::RefCountedString>&)>
       OutputCallback;
   void Flush(const OutputCallback& cb);
 
   // Called by TRACE_EVENT* macros, don't call this directly.
   static const unsigned char* GetCategoryEnabled(const char* name);
   static const char* GetCategoryName(const unsigned char* category_enabled);
 
   // Called by TRACE_EVENT* macros, don't call this directly.
-  // Returns the index in the internal vector of the event if it was added, or
-  //         -1 if the event was not added.
-  // On end events, the return value of the begin event can be specified along
-  // with a threshold in microseconds. If the elapsed time between begin and end
-  // is less than the threshold, the begin/end event pair is dropped.
   // If |copy| is set, |name|, |arg_name1| and |arg_name2| will be deep copied
   // into the event; see "Memory scoping note" and TRACE_EVENT_COPY_XXX above.
-  int AddTraceEvent(char phase,
+  void AddTraceEvent(char phase,
                     const unsigned char* category_enabled,
                     const char* name,
                     unsigned long long id,
                     int num_args,
                     const char** arg_names,
                     const unsigned char* arg_types,
                     const unsigned long long* arg_values,
-                    int threshold_begin_id,
-                    long long threshold,
                     unsigned char flags);
   static void AddTraceEventEtw(char phase,
                                const char* name,
                                const void* id,
                                const char* extra);
   static void AddTraceEventEtw(char phase,
                                const char* name,
                                const void* id,
                                const std::string& extra);
 
@@ skipping 111 matching lines @@
   const unsigned char* watch_category_;
   std::string watch_event_name_;
 
   DISALLOW_COPY_AND_ASSIGN(TraceLog);
 };
 
 }  // namespace debug
 }  // namespace base
 
 #endif  // BASE_DEBUG_TRACE_EVENT_IMPL_H_