Magnifier: Prevent the cursor jumping on HiDPI display.

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 275 matching lines @@
   virtual void ReleaseNativeCapture() OVERRIDE;
 
   // Exposes RootWindowHost::QueryMouseLocation() for test purposes.
   bool QueryMouseLocationForTest(gfx::Point* point) const;
 
   // Clears internal mouse state (such as mouse ups should be sent to the same
   // window that ate mouse downs).
   void ClearMouseHandlers();
 
   void SetRootWindowTransformer(scoped_ptr<RootWindowTransformer> transformer);
+  gfx::Transform GetRootTransform() const;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(RootWindowTest, KeepTranslatedEventInRoot);
 
   friend class Window;
   friend class TestScreen;
 
   // The parameter for OnWindowHidden() to specify why window is hidden.
   enum WindowHiddenReason {
     WINDOW_DESTROYED,  // Window is destroyed.
@@ skipping 91 matching lines @@
   gfx::Rect GetInitialHostWindowBounds() const;
 
   // Posts a task to send synthesized mouse move event if there
   // is no a pending task.
   void PostMouseMoveEventAfterWindowChange();
 
   // Creates and dispatches synthesized mouse move event using the
   // current mouse location.
   void SynthesizeMouseMoveEvent();
 
-  gfx::Transform GetRootTransform() const;
   gfx::Transform GetInverseRootTransform() const;
 
   scoped_ptr<ui::Compositor> compositor_;
 
   scoped_ptr<RootWindowHost> host_;
 
   // Used to schedule painting.
   base::WeakPtrFactory<RootWindow> schedule_paint_factory_;
 
   // Use to post mouse move event.
@@ skipping 39 matching lines @@
   scoped_ptr<ui::ViewProp> prop_;
 
   scoped_ptr<RootWindowTransformer> transformer_;
 
   DISALLOW_COPY_AND_ASSIGN(RootWindow);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_ROOT_WINDOW_H_