Implement profiler log writing at shutdown

chrome/browser/chrome_browser_main.h

Index: chrome/browser/chrome_browser_main.h
diff --git a/chrome/browser/chrome_browser_main.h b/chrome/browser/chrome_browser_main.h
index e13c0ddfd4b660780d9c1a61df761f0016cc5f98..b611fa9969c94fd39f08bc610670d682a4a682e8 100644
--- a/chrome/browser/chrome_browser_main.h
+++ b/chrome/browser/chrome_browser_main.h
@@ -14,6 +14,7 @@
 #include "base/tracked_objects.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/process_singleton.h"
+#include "chrome/browser/task_profiler/auto_tracking.h"
 #include "chrome/browser/ui/browser_init.h"
 #include "content/public/browser/browser_main_parts.h"
 #include "content/public/browser/browser_thread.h"
@@ -160,7 +161,7 @@ class ChromeBrowserMainParts : public content::BrowserMainParts {
   // Creating this object starts tracking the creation and deletion of Task
   // instance. This MUST be done before main_message_loop, so that it is
   // destroyed after the main_message_loop.
-  tracked_objects::AutoTracking tracking_objects_;
+  task_profiler::AutoTracking tracking_objects_;
 
   // Statistical testing infrastructure for the entire browser. NULL until
   // SetupMetricsAndFieldTrials is called.