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

base/tracked_objects.h

Index: base/tracked_objects.h
diff --git a/base/tracked_objects.h b/base/tracked_objects.h
index 558f35aaa924f328ecb8bc29ec50d14cb84801a0..7840fecbd1459c10f551a83386b91d43f0e7eaeb 100644
--- a/base/tracked_objects.h
+++ b/base/tracked_objects.h
@@ -240,13 +240,6 @@ class BASE_EXPORT Births: public BirthOnThread {
   // When we have a birth we update the count for this birthplace.
   void RecordBirth();
 
-  // When a birthplace is changed (updated), we need to decrement the counter
-  // for the old instance.
-  void ForgetBirth();
-
-  // Hack to quickly reset all counts to zero.
-  void Clear();
-
  private:
   // The number of births on this thread for our location_.
   int birth_count_;
@@ -422,12 +415,6 @@ class BASE_EXPORT ThreadData {
 
   const std::string& thread_name() const { return thread_name_; }
 
-  // Hack: asynchronously clear all birth counts and death tallies data values
-  // in all ThreadData instances.  The numerical (zeroing) part is done without
-  // use of a locks or atomics exchanges, and may (for int64 values) produce
-  // bogus counts VERY rarely.
-  static void ResetAllThreadData();
-
   // Initializes all statics if needed (this initialization call should be made
   // while we are single threaded). Returns false if unable to initialize.
   static bool Initialize();
@@ -545,9 +532,6 @@ class BASE_EXPORT ThreadData {
                     DeathMap* death_map,
                     ParentChildSet* parent_child_set);
 
-  // Using our lock to protect the iteration, Clear all birth and death data.
-  void Reset();
-
   // This method is called by the TLS system when a thread terminates.
   // The argument may be NULL if this thread has never tracked a birth or death.
   static void OnThreadTermination(void* thread_data);