ui: Use base::MessageLoop.

ui/app_list/views/search_result_list_view.cc

Index: ui/app_list/views/search_result_list_view.cc
diff --git a/ui/app_list/views/search_result_list_view.cc b/ui/app_list/views/search_result_list_view.cc
index a24d643051fd85d49b74e806db91d40617e8fb93..83642572fbb0d41d531922472ba996402191441c 100644
--- a/ui/app_list/views/search_result_list_view.cc
+++ b/ui/app_list/views/search_result_list_view.cc
@@ -126,7 +126,7 @@ void SearchResultListView::ScheduleUpdate() {
   // When search results are added one by one, each addition generates an update
   // request. Consolidates those update requests into one Update call.
   if (!update_factory_.HasWeakPtrs()) {
-    MessageLoop::current()->PostTask(
+    base::MessageLoop::current()->PostTask(
         FROM_HERE,
         base::Bind(&SearchResultListView::Update,
                    update_factory_.GetWeakPtr()));