Fully enable about:tracking by default

base/message_loop.h

Index: base/message_loop.h
===================================================================
--- base/message_loop.h	(revision 107750)
+++ base/message_loop.h	(working copy)
@@ -44,11 +44,9 @@
 class Histogram;
 }
 
-#if defined(TRACK_ALL_TASK_OBJECTS)
 namespace tracked_objects {
 class Births;
 }
-#endif  // defined(TRACK_ALL_TASK_OBJECTS)
 
 // A MessageLoop is used to process events for a particular thread.  There is
 // at most one MessageLoop instance per thread.
@@ -377,6 +375,22 @@
   }
 #endif  // OS_WIN
 
+  // This structure is copied around by value.
+  struct TrackingInfo {
+    TrackingInfo(const tracked_objects::Location& posted_from,
+                 base::TimeTicks delayed_run_time);
+    ~TrackingInfo();
+
+    // Counter for location where the Closure was posted from.
+    tracked_objects::Births* birth_tally;
+
+    // Time this PendingTask was posted.
+    base::TimeTicks time_posted;
+
+    // The time when the task should be run.
+    base::TimeTicks delayed_run_time;
+  };
+
   //----------------------------------------------------------------------------
  protected:
   struct RunState {
@@ -410,7 +424,7 @@
 #endif
 
   // This structure is copied around by value.
-  struct PendingTask {
+  struct PendingTask : public TrackingInfo {
     PendingTask(const base::Closure& task,
                 const tracked_objects::Location& posted_from,
                 base::TimeTicks delayed_run_time,
@@ -423,17 +437,6 @@
     // The task to run.
     base::Closure task;
 
-#if defined(TRACK_ALL_TASK_OBJECTS)
-    // Counter for location where the Closure was posted from.
-    tracked_objects::Births* post_births;
-#endif  // defined(TRACK_ALL_TASK_OBJECTS)
-
-    // Time this PendingTask was posted.
-    base::TimeTicks time_posted;
-
-    // The time when the task should be run.
-    base::TimeTicks delayed_run_time;
-
     // The site this PendingTask was posted from.
     tracked_objects::Location posted_from;