Convert string16 to base::string16 in content.

content/renderer/websharedworker_proxy.h

Index: content/renderer/websharedworker_proxy.h
diff --git a/content/renderer/websharedworker_proxy.h b/content/renderer/websharedworker_proxy.h
index 92f1a2053b3248ac5406d9ec882857b5017e9110..2df018afea11628ff294ffa56445536aa05e06dc 100644
--- a/content/renderer/websharedworker_proxy.h
+++ b/content/renderer/websharedworker_proxy.h
@@ -73,10 +73,10 @@ class WebSharedWorkerProxy : public blink::WebSharedWorker,
 
   void CreateWorkerContext(const GURL& script_url,
                            bool is_shared,
-                           const string16& name,
-                           const string16& user_agent,
-                           const string16& source_code,
-                           const string16& content_security_policy,
+                           const base::string16& name,
+                           const base::string16& user_agent,
+                           const base::string16& source_code,
+                           const base::string16& content_security_policy,
                            blink::WebContentSecurityPolicyType policy_type,
                            int pending_route_id,
                            int64 script_resource_appcache_id);