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

ui/aura/root_window.h

 // Copyright (c) 2012 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 UI_AURA_ROOT_WINDOW_H_
 #define UI_AURA_ROOT_WINDOW_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 111 matching lines @@
 
   // Invoked when the cursor's visibility has changed.
   void OnCursorVisibilityChanged(bool visible);
 
   // Invoked when the mouse events get enabled or disabled.
   void OnMouseEventsEnableStateChanged(bool enabled);
 
   // 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();
 
   // Draws the necessary set of windows.
   void Draw();
 
   // Draw the whole screen.
   void ScheduleFullRedraw();
 
   // Draw the damage_rect.
@@ skipping 166 matching lines @@
   // Updates the event with the appropriate transform for the device scale
   // factor. The RootWindowHostDelegate dispatches events in the physical pixel
   // coordinate. But the event processing from RootWindow onwards happen in
   // device-independent pixel coordinate. So it is necessary to update the event
   // received from the host. When |keep_inside_root| is true and the event's
   // system location is inside host window's bounds, the location will be
   // kept inside the root window's bounds.
   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);
 
   // Dispatches the specified event type (intended for enter/exit) to the
   // |mouse_moved_handler_|.
   void DispatchMouseEnterOrExit(const ui::MouseEvent& event,
                                 ui::EventType type);
 
   void ProcessEvent(Window* target, ui::Event* event);
@@ skipping 126 matching lines @@
   scoped_ptr<ui::ViewProp> prop_;
 
   scoped_ptr<RootWindowTransformer> transformer_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindow);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_H_