Add context to gfx::Screen calls in support of simultaneous desktop+ash

ui/views/drag_utils.cc

Index: ui/views/drag_utils.cc
diff --git a/ui/views/drag_utils.cc b/ui/views/drag_utils.cc
index b88e5c1aa8ab7891f9e72ae5bb563cf902bcc4ea..50cf583d0a8fcc5f6b2d887b7d8a909784db692f 100644
--- a/ui/views/drag_utils.cc
+++ b/ui/views/drag_utils.cc
@@ -29,8 +29,9 @@ ui::ScaleFactor GetDeviceScaleFactorForNativeView(views::Widget* widget) {
   // yet care about device scale factor on other platforms. So to keep drag and
   // drop behavior on other platforms un-touched, we wrap this in the #if guard.
   if (widget && widget->GetNativeView()) {
-    gfx::Display display = gfx::Screen::GetDisplayNearestWindow(
-        widget->GetNativeView());
+    gfx::NativeView view = widget->GetNativeView();
+    gfx::Display display = gfx::Screen::GetScreenFor(view)->
+        GetDisplayNearestWindow(view);
     device_scale_factor = ui::GetScaleFactorFromScale(
         display.device_scale_factor());
   }