ash: ozone: apply transformation to events outside the root window

ash/host/ash_window_tree_host.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_HOST_ASH_WINDOW_TREE_HOST_H_
 #define ASH_HOST_ASH_WINDOW_TREE_HOST_H_
 
 #include "ash/ash_export.h"
 #include "base/memory/scoped_ptr.h"
 
 namespace aura {
 class Window;
 class WindowTreeHost;
 }
 
 namespace gfx {
 class Insets;
 class Rect;
 }
 
+namespace ui {
+class LocatedEvent;
+}
+
 namespace ash {
 struct AshWindowTreeHostInitParams;
 class RootWindowTransformer;
 
 class ASH_EXPORT AshWindowTreeHost {
  public:
   virtual ~AshWindowTreeHost() {}
 
   // Creates a new AshWindowTreeHost. The caller owns the returned value.
   static AshWindowTreeHost* Create(
@@ skipping 19 matching lines @@
 
   // Updates the display IDs associated with this root window.
   // A root window can be associated with up to 2 display IDs (e.g. in mirror
   // mode dual monitors case). If the root window is only associated with one
   // display id, then the other id should be set to
   // gfx::Display::kInvalidDisplayID.
   virtual void UpdateDisplayID(int64 id1, int64 id2) {}
 
   // Stop listening for events in preparation for shutdown.
   virtual void PrepareForShutdown() {}
+
+ protected:
+  // Translates the native mouse location into screen coordinates.
+  void TranslateLocatedEvent(ui::LocatedEvent* event);
 };
 
 }  // namespace ash
 
 #endif  // ASH_HOST_ASH_WINDOW_TREE_HOST_H_