Fully enable about:tracking by default

base/message_loop.h

 // Copyright (c) 2011 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.
 
 #ifndef BASE_MESSAGE_LOOP_H_
 #define BASE_MESSAGE_LOOP_H_
 #pragma once
 
 #include <queue>
 #include <string>
@@ skipping 26 matching lines @@
 #include "base/message_pump_gtk.h"
 #endif
 
 #endif
 #endif
 
 namespace base {
 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.
 //
 // Events include at a minimum Task instances submitted to PostTask or those
 // managed by TimerManager.  Depending on the type of message pump used by the
 // MessageLoop other events such as UI messages may be processed.  On Windows
 // APC calls (as time permits) and signals sent to a registered set of HANDLEs
 // may also be processed.
 //
@@ skipping 308 matching lines @@
 #if defined(OS_WIN)
   void set_os_modal_loop(bool os_modal_loop) {
     os_modal_loop_ = os_modal_loop;
   }
 
   bool os_modal_loop() const {
     return os_modal_loop_;
   }
 #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 {
     // Used to count how many Run() invocations are on the stack.
     int run_depth;
 
     // Used to record that Quit() was called, or that we should quit the pump
     // once it becomes idle.
     bool quit_received;
 
@@ skipping 13 matching lines @@
     ~AutoRunState();
    private:
     MessageLoop* loop_;
     RunState* previous_state_;
   };
 #if defined(OS_ANDROID)
  protected:
 #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,
                 bool nestable);
     ~PendingTask();
 
     // Used to support sorting.
     bool operator<(const PendingTask& other) const;
 
     // 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;
 
     // Secondary sort key for run time.
     int sequence_num;
 
     // OK to dispatch from a nested loop.
     bool nestable;
   };
 
@@ skipping 264 matching lines @@
 #endif  // defined(OS_POSIX)
 };
 
 // Do not add any member variables to MessageLoopForIO!  This is important b/c
 // MessageLoopForIO is often allocated via MessageLoop(TYPE_IO).  Any extra
 // data that you need should be stored on the MessageLoop's pump_ instance.
 COMPILE_ASSERT(sizeof(MessageLoop) == sizeof(MessageLoopForIO),
                MessageLoopForIO_should_not_have_extra_member_variables);
 
 #endif  // BASE_MESSAGE_LOOP_H_