Ensure that in Desktop AURA the WindowModalityController class is at the head of the event pre targ…

ui/views/corewm/window_modality_controller.h

Index: ui/views/corewm/window_modality_controller.h
===================================================================
--- ui/views/corewm/window_modality_controller.h	(revision 226033)
+++ ui/views/corewm/window_modality_controller.h	(working copy)
@@ -14,6 +14,7 @@
 #include "ui/views/views_export.h"
 
 namespace ui {
+class EventTarget;
 class LocatedEvent;
 }
 
@@ -34,7 +35,7 @@
                                               public aura::EnvObserver,
                                               public aura::WindowObserver {
  public:
-  WindowModalityController();
+  explicit WindowModalityController(ui::EventTarget* event_target);
   virtual ~WindowModalityController();
 
   // Overridden from ui::EventHandler:
@@ -61,6 +62,8 @@
 
   std::vector<aura::Window*> windows_;
 
+  ui::EventTarget* event_target_;
+
   DISALLOW_COPY_AND_ASSIGN(WindowModalityController);
 };