ui: Use base::MessageLoop.

ui/views/controls/textfield/native_textfield_views.cc

Index: ui/views/controls/textfield/native_textfield_views.cc
diff --git a/ui/views/controls/textfield/native_textfield_views.cc b/ui/views/controls/textfield/native_textfield_views.cc
index 6674cc73b9a8dbff4feea25f9fa23e8c4403b5fd..cc2204f15b44234b0542d8a47b6e70f471474edb 100644
--- a/ui/views/controls/textfield/native_textfield_views.cc
+++ b/ui/views/controls/textfield/native_textfield_views.cc
@@ -678,7 +678,7 @@ void NativeTextfieldViews::HandleFocus() {
   SchedulePaint();
   OnCaretBoundsChanged();
   // Start blinking cursor.
-  MessageLoop::current()->PostDelayedTask(
+  base::MessageLoop::current()->PostDelayedTask(
       FROM_HERE,
       base::Bind(&NativeTextfieldViews::UpdateCursor,
                  cursor_timer_.GetWeakPtr()),
@@ -1074,7 +1074,7 @@ void NativeTextfieldViews::UpdateColorsFromTheme(const ui::NativeTheme* theme) {
 void NativeTextfieldViews::UpdateCursor() {
   is_cursor_visible_ = !is_cursor_visible_;
   RepaintCursor();
-  MessageLoop::current()->PostDelayedTask(
+  base::MessageLoop::current()->PostDelayedTask(
       FROM_HERE,
       base::Bind(&NativeTextfieldViews::UpdateCursor,
                  cursor_timer_.GetWeakPtr()),