Magnifier: Move the cursor directly to the root window host.

ui/aura/root_window.h

Index: ui/aura/root_window.h
diff --git a/ui/aura/root_window.h b/ui/aura/root_window.h
index 11f59773a8a24826d06399c46c6fa72a7e06e588..e4a41716cf900c4180b41850bb3d276eaae6bb60 100644
--- a/ui/aura/root_window.h
+++ b/ui/aura/root_window.h
@@ -129,6 +129,9 @@ class AURA_EXPORT RootWindow : public ui::CompositorDelegate,
   // Moves the cursor to the specified location relative to the root window.
   virtual void MoveCursorTo(const gfx::Point& location) OVERRIDE;
 
+  // Moves the cursor to the |host_location| given in host coordinates.
+  void MoveCursorToHostLocation(const gfx::Point& host_location);
+
   // Clips the cursor movement to the root_window.
   bool ConfineCursorToWindow();
 
@@ -315,6 +318,11 @@ class AURA_EXPORT RootWindow : public ui::CompositorDelegate,
   void TransformEventForDeviceScaleFactor(bool keep_inside_root,
                                           ui::LocatedEvent* event);
 
+  // Moves the cursor to the specified location. This method is internally used
+  // by MoveCursorTo() and MoveCursorToHostLocation().
+  void MoveCursorToInternal(const gfx::Point& root_location,
+                            const gfx::Point& host_location);
+
   // Called whenever the mouse moves, tracks the current |mouse_moved_handler_|,
   // sending exited and entered events as its value changes.
   void HandleMouseMoved(const ui::MouseEvent& event, Window* target);