events: Get rid of GestureStatus in favour of EventResult.

ash/system/status_area_widget_delegate.cc

Index: ash/system/status_area_widget_delegate.cc
diff --git a/ash/system/status_area_widget_delegate.cc b/ash/system/status_area_widget_delegate.cc
index 8d145ced4acfe2c1bad5fa1e710d865106dbfd3f..f3c1c347006f8ab808bf33cb7e8f3607c498c996 100644
--- a/ash/system/status_area_widget_delegate.cc
+++ b/ash/system/status_area_widget_delegate.cc
@@ -62,10 +62,10 @@ const views::Widget* StatusAreaWidgetDelegate::GetWidget() const {
   return View::GetWidget();
 }
 
-ui::GestureStatus StatusAreaWidgetDelegate::OnGestureEvent(
+ui::EventResult StatusAreaWidgetDelegate::OnGestureEvent(
     const ui::GestureEvent& event) {
   if (gesture_handler_.ProcessGestureEvent(event))
-    return ui::GESTURE_STATUS_CONSUMED;
+    return ui::ER_CONSUMED;
 
   return views::AccessiblePaneView::OnGestureEvent(event);
 }