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

ash/magnifier/magnification_controller.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 ASH_MAGNIFIER_MAGNIFICATION_CONTROLLER_H_
 #define ASH_MAGNIFIER_MAGNIFICATION_CONTROLLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 29 matching lines @@
   virtual void MoveWindow(int x, int y, bool animate) = 0;
   virtual void MoveWindow(const gfx::Point& point, bool animate) = 0;
   // Returns the current top-left point of the magnification window.
   virtual gfx::Point GetWindowPosition() const = 0;
 
   // Ensures that the given point/rect is inside the magnification window. If
   // not, the controller moves the window to contain the given point/rect.
   virtual void EnsureRectIsVisible(const gfx::Rect& rect, bool animate) = 0;
   virtual void EnsurePointIsVisible(const gfx::Point& point, bool animate) = 0;
 
+  // For test.
+  virtual gfx::Point GetPointOfInterestForTesting() = 0;

[sky, 2013/04/25 14:41:35]

point of interest? What is this?

[yoshiki, 2013/04/25 16:05:19]

The value of point_of_interest is the last cursor position or the last touched
location. When changing the scale, the magnifier zooms in/out keeping this point
in the view port.

And here, this value is exposed only for unittest.

[sky, 2013/04/25 16:46:59]

My point is there is no description of the method and the name doesn't convey in
any way what is returned.

+
  protected:
   MagnificationController() {}
 };
 
 }  // namespace ash
 
 #endif  // ASH_MAGNIFIER_MAGNIFICATION_CONTROLLER_H_