Move Time, TimeDelta and TimeTicks into namespace base.

chrome/browser/views/clear_browsing_data.cc

Index: chrome/browser/views/clear_browsing_data.cc
===================================================================
--- chrome/browser/views/clear_browsing_data.cc	(revision 3954)
+++ chrome/browser/views/clear_browsing_data.cc	(working copy)
@@ -21,6 +21,9 @@
 
 #include "generated_resources.h"
 
+using base::Time;
+using base::TimeDelta;
+
 // The combo box is vertically aligned to the 'time-period' label, which makes
 // the combo box look a little too close to the check box above it when we use
 // standard layout to separate them. We therefore add a little extra margin to
@@ -408,4 +411,3 @@
   remover_ = NULL;
   window()->Close();
 }
-