Move Time, TimeDelta and TimeTicks into namespace base.

Review URL: http://codereview.chromium.org/7995

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@4022 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/printing/win_printing_context.cc b/chrome/browser/printing/win_printing_context.cc
index badbaf2..e865b3c 100644
--- a/chrome/browser/printing/win_printing_context.cc
+++ b/chrome/browser/printing/win_printing_context.cc
@@ -12,6 +12,8 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/printing/print_job_manager.h"
 
+using base::Time;
+
 namespace {
 
 // Retrieves the content of a GetPrinter call.