Reduce header dependencies in base/

base/tracked_objects.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_objects.h"
 
 #include <math.h>
 
+#include "base/message_loop.h"
 #include "base/string_util.h"
 
 using base::TimeDelta;
 
 namespace tracked_objects {
 
 // A TLS slot to the TrackRegistry for the current thread.
 // static
 TLSSlot ThreadData::tls_index_(base::LINKER_INITIALIZED);
 
@@ skipping 878 matching lines @@
                   (combined_selectors_ & BIRTH_THREAD) ? "*" :
                     sample.birth().birth_thread()->ThreadName().c_str(),
                   (combined_selectors_ & DEATH_THREAD) ? "*" :
                     sample.DeathThreadName().c_str());
   sample.birth().location().Write(!(combined_selectors_ & BIRTH_FILE),
                                   !(combined_selectors_ & BIRTH_FUNCTION),
                                   output);
 }
 
 }  // namespace tracked_objects