Revert 107895 - Fully enable about:tracking by default

base/threading/worker_pool_win.cc

Index: base/threading/worker_pool_win.cc
===================================================================
--- base/threading/worker_pool_win.cc	(revision 107960)
+++ base/threading/worker_pool_win.cc	(working copy)
@@ -20,15 +20,19 @@
       const base::Closure& task)
       : posted_from(posted_from),
         task(task) {
-    birth_tally = tracked_objects::ThreadData::TallyABirthIfActive(posted_from);
+#if defined(TRACK_ALL_TASK_OBJECTS)
+    post_births = tracked_objects::ThreadData::TallyABirthIfActive(posted_from);
     time_posted = tracked_objects::ThreadData::Now();
+#endif  // defined(TRACK_ALL_TASK_OBJECTS)
   }
 
+#if defined(TRACK_ALL_TASK_OBJECTS)
   // Counter for location where the Closure was posted from.
-  tracked_objects::Births* birth_tally;
+  tracked_objects::Births* post_births;
 
   // Time the task was posted.
-  tracked_objects::TrackedTime time_posted;
+  TimeTicks time_posted;
+#endif  // defined(TRACK_ALL_TASK_OBJECTS)
 
   // The site this PendingTask was posted from.
   tracked_objects::Location posted_from;
@@ -43,14 +47,16 @@
                          "src_file", pending_task->posted_from.file_name(),
                          "src_func", pending_task->posted_from.function_name());
 
-  tracked_objects::TrackedTime start_time = tracked_objects::ThreadData::Now();
-
+#if defined(TRACK_ALL_TASK_OBJECTS)
+  TimeTicks start_of_run = tracked_objects::ThreadData::Now();
+#endif  // defined(TRACK_ALL_TASK_OBJECTS)
   pending_task->task.Run();
+#if defined(TRACK_ALL_TASK_OBJECTS)
+  tracked_objects::ThreadData::TallyADeathIfActive(pending_task->post_births,
+      pending_task->time_posted, TimeTicks::TimeTicks(), start_of_run,
+      tracked_objects::ThreadData::Now());
+#endif  // defined(TRACK_ALL_TASK_OBJECTS)
 
-  tracked_objects::ThreadData::TallyRunOnWorkerThreadIfTracking(
-      pending_task->birth_tally, pending_task->time_posted,
-      start_time, tracked_objects::ThreadData::Now());
-
   delete pending_task;
   return 0;
 }