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

ui/views/mouse_watcher.cc

Index: ui/views/mouse_watcher.cc
diff --git a/ui/views/mouse_watcher.cc b/ui/views/mouse_watcher.cc
index 54db66054730e8f2b38b766a75f29e44cf2fd996..e96a46e5ae992d28a7973d22d891174cb3341f75 100644
--- a/ui/views/mouse_watcher.cc
+++ b/ui/views/mouse_watcher.cc
@@ -86,7 +86,8 @@ class MouseWatcher::Observer : public MessageLoopForUI::Observer {
   // Called from the message loop observer when a mouse movement has occurred.
   void HandleGlobalMouseMoveEvent(MouseWatcherHost::MouseEventType event_type) {
     bool contained = host()->Contains(
-        gfx::Screen::GetCursorScreenPoint(), event_type);
+        gfx::Screen::GetCursorScreenPoint(gfx::Screen::BadTwoWorldsContext()),
+        event_type);
     if (!contained) {
       // Mouse moved outside the host's zone, start a timer to notify the
       // listener.