Move CancelableTaskTracker to //base/task/CancelableTaskTracker.

chrome/browser/ui/webui/ntp/android/bookmarks_handler.h

Index: chrome/browser/ui/webui/ntp/android/bookmarks_handler.h
diff --git a/chrome/browser/ui/webui/ntp/android/bookmarks_handler.h b/chrome/browser/ui/webui/ntp/android/bookmarks_handler.h
index 23e4669974940e76488bab7a8577f019a93076a3..978f17fec0c754523db4caf6fa0f412ef587f597 100644
--- a/chrome/browser/ui/webui/ntp/android/bookmarks_handler.h
+++ b/chrome/browser/ui/webui/ntp/android/bookmarks_handler.h
@@ -6,12 +6,12 @@
 #define CHROME_BROWSER_UI_WEBUI_NTP_ANDROID_BOOKMARKS_HANDLER_H_
 
 #include "base/memory/scoped_ptr.h"
+#include "base/task/cancelable_task_tracker.h"
 #include "base/values.h"
 #include "chrome/browser/android/bookmarks/managed_bookmarks_shim.h"
 #include "chrome/browser/android/bookmarks/partner_bookmarks_shim.h"
 #include "chrome/browser/bookmarks/base_bookmark_model_observer.h"
 #include "chrome/browser/favicon/favicon_service.h"
-#include "chrome/common/cancelable_task_tracker.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 // The handler for Javascript messages related to the bookmarks.
@@ -109,7 +109,7 @@ class BookmarksHandler : public content::WebUIMessageHandler,
   bool extensive_changes_;
 
   // Used for loading bookmark node.
-  CancelableTaskTracker cancelable_task_tracker_;
+  base::CancelableTaskTracker cancelable_task_tracker_;
 
   // Returns true iff bookmark model and partner bookmarks shim are loaded.
   bool AreModelsLoaded() const;