Move CancelableTaskTracker to //base/task/CancelableTaskTracker.

chrome/browser/android/provider/chrome_browser_provider.h

Index: chrome/browser/android/provider/chrome_browser_provider.h
diff --git a/chrome/browser/android/provider/chrome_browser_provider.h b/chrome/browser/android/provider/chrome_browser_provider.h
index 53e5ddaae99495b1e8bbe801bc0821e1a33c6af0..4e6dea40eeaedd929922d5381ee0a151c6cfe05d 100644
--- a/chrome/browser/android/provider/chrome_browser_provider.h
+++ b/chrome/browser/android/provider/chrome_browser_provider.h
@@ -9,10 +9,10 @@
 #include "base/android/scoped_java_ref.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/waitable_event.h"
+#include "base/task/cancelable_task_tracker.h"
 #include "chrome/browser/bookmarks/base_bookmark_model_observer.h"
 #include "chrome/browser/common/cancelable_request.h"
 #include "chrome/browser/history/android/android_history_types.h"
-#include "chrome/common/cancelable_task_tracker.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
@@ -201,7 +201,7 @@ class ChromeBrowserProvider : public BaseBookmarkModelObserver,
   CancelableRequestConsumer android_history_consumer_;
   CancelableRequestConsumer favicon_consumer_;
 
-  CancelableTaskTracker cancelable_task_tracker_;
+  base::CancelableTaskTracker cancelable_task_tracker_;
 
   // Used to register/unregister notification observer.
   content::NotificationRegistrar notification_registrar_;