Update some uses of UTF conversions in chrome/browser to use the base:: namespace.

chrome/browser/sync/glue/tab_node_pool.cc

Index: chrome/browser/sync/glue/tab_node_pool.cc
diff --git a/chrome/browser/sync/glue/tab_node_pool.cc b/chrome/browser/sync/glue/tab_node_pool.cc
index a16bb57415f0bcbe537702b98d0ac6394f432a53..9ece54a2a4fafad6bc96d62d7e71c772d42023b9 100644
--- a/chrome/browser/sync/glue/tab_node_pool.cc
+++ b/chrome/browser/sync/glue/tab_node_pool.cc
@@ -88,7 +88,7 @@ int TabNodePool::GetFreeTabNode() {
     }
     // We fill the new node with just enough data so that in case of a crash/bug
     // we can identify the node as our own on re-association and reuse it.
-    tab_node.SetTitle(UTF8ToWide(tab_node_tag));
+    tab_node.SetTitle(base::UTF8ToWide(tab_node_tag));
     sync_pb::SessionSpecifics specifics;
     specifics.set_session_tag(machine_tag_);
     specifics.set_tab_node_id(tab_node_id);