Eliminate the TimerManager by pulling its priority queue into MessageLoop....

base/tracked.h

Index: base/tracked.h
===================================================================
--- base/tracked.h	(revision 1824)
+++ base/tracked.h	(working copy)
@@ -108,6 +108,8 @@
   bool MissingBirthplace() const;
 
  private:
+#ifdef TRACK_ALL_TASK_OBJECTS
+
   // Pointer to instance were counts of objects with the same birth location
   // (on the same thread) are stored.
   Births* tracked_births_;
@@ -116,6 +118,8 @@
   // reset before the object begins it active life.
   Time tracked_birth_time_;
 
+#endif  // TRACK_ALL_TASK_OBJECTS
+
   DISALLOW_COPY_AND_ASSIGN(Tracked);
 };