Added task to Observer methods

base/tracked.cc

 // Copyright (c) 2006-2008 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.
 
 #include "base/tracked.h"
 
 #include "base/stringprintf.h"
 #include "base/tracked_objects.h"
 
 using base::TimeTicks;
@@ skipping 47 matching lines @@
   }
 }
 
 //------------------------------------------------------------------------------
 
 #ifndef TRACK_ALL_TASK_OBJECTS
 
 Tracked::Tracked() {}
 Tracked::~Tracked() {}
 void Tracked::SetBirthPlace(const Location& from_here) {}
+const Location Tracked::GetBirthPlace() const {
+  static Location kNone("NoFunctionName", "NeedToSetBirthPlace", -1);
+  return kNone;
+}
 bool Tracked::MissingBirthplace() const { return false; }
 void Tracked::ResetBirthTime() {}
 
 #else
 
 Tracked::Tracked()
     : tracked_births_(NULL),
       tracked_birth_time_(TimeTicks::Now()) {
   if (!ThreadData::IsActive())
     return;
@@ skipping 11 matching lines @@
   if (!ThreadData::IsActive())
     return;
   if (tracked_births_)
     tracked_births_->ForgetBirth();
   ThreadData* current_thread_data = ThreadData::current();
   if (!current_thread_data)
     return;  // Shutdown started, and this thread wasn't registered.
   tracked_births_ = current_thread_data->TallyABirth(from_here);
 }
 
+const Location Tracked::GetBirthPlace() const {
+  return tracked_births_->location();
+}
+
 void Tracked::ResetBirthTime() {
   tracked_birth_time_ = TimeTicks::Now();
 }
 
 bool Tracked::MissingBirthplace() const {
   return -1 == tracked_births_->location().line_number();
 }
 
 #endif  // NDEBUG
 
 }  // namespace tracked_objects