Convert string16 to base::string16 in content.

content/browser/worker_host/worker_service_impl.h

Index: content/browser/worker_host/worker_service_impl.h
diff --git a/content/browser/worker_host/worker_service_impl.h b/content/browser/worker_host/worker_service_impl.h
index 9da0d19cd2167d866f71efdb3451a0fe08909487..4d5127aec25a3ac399b7165bfa49f8f6e41581f6 100644
--- a/content/browser/worker_host/worker_service_impl.h
+++ b/content/browser/worker_host/worker_service_impl.h
@@ -108,23 +108,23 @@ class CONTENT_EXPORT WorkerServiceImpl
   // APIs for manipulating our set of pending shared worker instances.
   WorkerProcessHost::WorkerInstance* CreatePendingInstance(
       const GURL& url,
-      const string16& name,
+      const base::string16& name,
       ResourceContext* resource_context,
       const WorkerStoragePartition& worker_partition);
   WorkerProcessHost::WorkerInstance* FindPendingInstance(
       const GURL& url,
-      const string16& name,
+      const base::string16& name,
       const WorkerStoragePartition& worker_partition,
       ResourceContext* resource_context);
   void RemovePendingInstances(
       const GURL& url,
-      const string16& name,
+      const base::string16& name,
       const WorkerStoragePartition& worker_partition,
       ResourceContext* resource_context);
 
   WorkerProcessHost::WorkerInstance* FindSharedWorkerInstance(
       const GURL& url,
-      const string16& name,
+      const base::string16& name,
       const WorkerStoragePartition& worker_partition,
       ResourceContext* resource_context);