Use a direct include of strings headers in chrome/browser/r*-s*/.

BUG=247723
TEST=none
[email protected]

Review URL: https://chromiumcodereview.appspot.com/15906011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@205318 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/search_engines/util.h b/chrome/browser/search_engines/util.h
index 158841aa..912748d 100644
--- a/chrome/browser/search_engines/util.h
+++ b/chrome/browser/search_engines/util.h
@@ -11,7 +11,7 @@
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
-#include "base/string16.h"
+#include "base/strings/string16.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 
 class Profile;