Replace string16 with base::string16 in src/webkit

webkit/tools/test_shell/simple_dom_storage_system.h

Index: webkit/tools/test_shell/simple_dom_storage_system.h
diff --git a/webkit/tools/test_shell/simple_dom_storage_system.h b/webkit/tools/test_shell/simple_dom_storage_system.h
index c0b386c31b58ade08199a51dd1cff163dd58beb8..8f465428ce7118704731b10029a4bd9340e4e644 100644
--- a/webkit/tools/test_shell/simple_dom_storage_system.h
+++ b/webkit/tools/test_shell/simple_dom_storage_system.h
@@ -47,14 +47,14 @@ class SimpleDomStorageSystem
   // calls into webkit/webcore to dispatch events.
   virtual void OnDomStorageItemSet(
       const dom_storage::DomStorageArea* area,
-      const string16& key,
-      const string16& new_value,
+      const base::string16& key,
+      const base::string16& new_value,
       const NullableString16& old_value,
       const GURL& page_url) OVERRIDE;
   virtual void OnDomStorageItemRemoved(
       const dom_storage::DomStorageArea* area,
-      const string16& key,
-      const string16& old_value,
+      const base::string16& key,
+      const base::string16& old_value,
       const GURL& page_url) OVERRIDE;
   virtual void OnDomStorageAreaCleared(
       const dom_storage::DomStorageArea* area,