Update uses of UTF conversions in content/ to use the base:: namespace.

content/browser/service_worker/service_worker_dispatcher_host.cc

Index: content/browser/service_worker/service_worker_dispatcher_host.cc
diff --git a/content/browser/service_worker/service_worker_dispatcher_host.cc b/content/browser/service_worker/service_worker_dispatcher_host.cc
index 76e7ff746ae8baaf19628b9069fff2bfb9b58329..92fe5e761fe4d6ef2be0f18fdfc5ebf24a9fb5ad 100644
--- a/content/browser/service_worker/service_worker_dispatcher_host.cc
+++ b/content/browser/service_worker/service_worker_dispatcher_host.cc
@@ -91,7 +91,7 @@ void ServiceWorkerDispatcherHost::OnRegisterServiceWorker(
         thread_id,
         request_id,
         WebServiceWorkerError::DisabledError,
-        ASCIIToUTF16(kDisabledErrorMessage)));
+        base::ASCIIToUTF16(kDisabledErrorMessage)));
     return;
   }
 
@@ -103,7 +103,7 @@ void ServiceWorkerDispatcherHost::OnRegisterServiceWorker(
         thread_id,
         request_id,
         WebServiceWorkerError::SecurityError,
-        ASCIIToUTF16(kDomainMismatchErrorMessage)));
+        base::ASCIIToUTF16(kDomainMismatchErrorMessage)));
     return;
   }
 
@@ -128,7 +128,7 @@ void ServiceWorkerDispatcherHost::OnUnregisterServiceWorker(
         thread_id,
         request_id,
         blink::WebServiceWorkerError::DisabledError,
-        ASCIIToUTF16(kDisabledErrorMessage)));
+        base::ASCIIToUTF16(kDisabledErrorMessage)));
     return;
   }