Ash/aura split: NativeWidgetAura::GetWindowScreenBounds() should return screen bounds.

ash/tooltips/tooltip_controller.cc

Index: ash/tooltips/tooltip_controller.cc
diff --git a/ash/tooltips/tooltip_controller.cc b/ash/tooltips/tooltip_controller.cc
index ba69352dd915a60e7ec42f24467d602d8ac8de62..341128d2c12cbb6747fcdb27ffda27a9881cacfb 100644
--- a/ash/tooltips/tooltip_controller.cc
+++ b/ash/tooltips/tooltip_controller.cc
@@ -405,7 +405,8 @@ void TooltipController::UpdateIfRequired() {
     } else {
       string16 tooltip_text(tooltip_text_);
       gfx::Point widget_loc = curr_mouse_loc_;
-      widget_loc = widget_loc.Add(tooltip_window_->GetScreenBounds().origin());
+      widget_loc = widget_loc.Add(
+          tooltip_window_->GetBoundsInRootWindow().origin());
       tooltip_->SetText(tooltip_text, widget_loc);
       tooltip_->Show();
     }