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

ui/views/controls/button/custom_button.cc

Index: ui/views/controls/button/custom_button.cc
diff --git a/ui/views/controls/button/custom_button.cc b/ui/views/controls/button/custom_button.cc
index 28d570ca325dbd5899da9728f7df0f1f635b05d4..9c308a0ff4b8d805f7bfdb4c5111c51c860d5402 100644
--- a/ui/views/controls/button/custom_button.cc
+++ b/ui/views/controls/button/custom_button.cc
@@ -72,7 +72,8 @@ bool CustomButton::IsMouseHovered() const {
   if (!GetWidget())
     return false;
 
-  gfx::Point cursor_pos(gfx::Screen::GetCursorScreenPoint());
+  gfx::Point cursor_pos(gfx::Screen::GetCursorScreenPoint(
+      gfx::Screen::BadTwoWorldsContext()));
   ConvertPointToTarget(NULL, this, &cursor_pos);
   return HitTestPoint(cursor_pos);
 }