Convert string16 to base::string16 in content.

content/renderer/geolocation_dispatcher.cc

Index: content/renderer/geolocation_dispatcher.cc
diff --git a/content/renderer/geolocation_dispatcher.cc b/content/renderer/geolocation_dispatcher.cc
index 031376c731879528127767296414efefbcb29693..a764b6107e2aa8fed1d33f4c8d5b016f62b6ccdf 100644
--- a/content/renderer/geolocation_dispatcher.cc
+++ b/content/renderer/geolocation_dispatcher.cc
@@ -87,7 +87,7 @@ bool GeolocationDispatcher::lastPosition(WebGeolocationPosition&) {
 void GeolocationDispatcher::requestPermission(
     const WebGeolocationPermissionRequest& permissionRequest) {
   int bridge_id = pending_permissions_->add(permissionRequest);
-  string16 origin = permissionRequest.securityOrigin().toString();
+  base::string16 origin = permissionRequest.securityOrigin().toString();
   Send(new GeolocationHostMsg_RequestPermission(
       routing_id(), bridge_id, GURL(origin)));
 }
@@ -99,7 +99,7 @@ void GeolocationDispatcher::cancelPermissionRequest(
   int bridge_id;
   if (!pending_permissions_->remove(permissionRequest, bridge_id))
     return;
-  string16 origin = permissionRequest.securityOrigin().toString();
+  base::string16 origin = permissionRequest.securityOrigin().toString();
   Send(new GeolocationHostMsg_CancelPermissionRequest(
       routing_id(), bridge_id, GURL(origin)));
 }