Removing unused Births methods and unnecessary link from chrome://profiler

base/tracked_objects.cc

 // 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.
 
 #include "base/tracked_objects.h"
 
 #include <limits.h>
 #include <stdlib.h>
 
 #include "base/atomicops.h"
@@ skipping 209 matching lines @@
 
 //------------------------------------------------------------------------------
 Births::Births(const Location& location, const ThreadData& current)
     : BirthOnThread(location, current),
       birth_count_(1) { }
 
 int Births::birth_count() const { return birth_count_; }
 
 void Births::RecordBirth() { ++birth_count_; }
 
-void Births::ForgetBirth() { --birth_count_; }
-
-void Births::Clear() { birth_count_ = 0; }
-
 //------------------------------------------------------------------------------
 // ThreadData maintains the central data for all births and deaths on a single
 // thread.
 
 // TODO(jar): We should pull all these static vars together, into a struct, and
 // optimize layout so that we benefit from locality of reference during accesses
 // to them.
 
 // static
 NowFunction* ThreadData::now_function_ = NULL;
@@ skipping 403 matching lines @@
   }
 
   if (!kTrackParentChildLinks)
     return;
 
   for (ParentChildSet::iterator it = parent_child_set_.begin();
        it != parent_child_set_.end(); ++it)
     parent_child_set->insert(*it);
 }
 
-// static
-void ThreadData::ResetAllThreadData() {
-  ThreadData* my_list = first();
-
-  for (ThreadData* thread_data = my_list;
-       thread_data;
-       thread_data = thread_data->next())
-    thread_data->Reset();
-}
-
-void ThreadData::Reset() {
-  base::AutoLock lock(map_lock_);
-  for (DeathMap::iterator it = death_map_.begin();
-       it != death_map_.end(); ++it)
-    it->second.Clear();
-  for (BirthMap::iterator it = birth_map_.begin();
-       it != birth_map_.end(); ++it)
-    it->second->Clear();
-}
-
 static void OptionallyInitializeAlternateTimer() {
   NowFunction* alternate_time_source = GetAlternateTimeSource();
   if (alternate_time_source)
     ThreadData::SetAlternateTimeSource(alternate_time_source);
 }
 
 bool ThreadData::Initialize() {
   if (!kTrackAllTaskObjects)
     return false;  // Not compiled in.
   if (status_ >= DEACTIVATED)
@@ skipping 303 matching lines @@
     : process_id(base::GetCurrentProcId()) {
 #else
     : process_id(0) {
 #endif
 }
 
 ProcessDataSnapshot::~ProcessDataSnapshot() {
 }
 
 }  // namespace tracked_objects