Ash: Use right edge of screen to scroll maximized windows

ash/wm/frame_painter.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_WM_FRAME_PAINTER_H_
 #define ASH_WM_FRAME_PAINTER_H_
 #pragma once
 
 #include "ash/ash_export.h"
 #include "base/basictypes.h"
@@ skipping 13 matching lines @@
 class Widget;
 }
 
 namespace ash {
 
 // Helper class for painting window frames.  Exists to share code between
 // various implementations of views::NonClientFrameView.  Canonical source of
 // layout constants for Ash window frames.
 class ASH_EXPORT FramePainter {
  public:
+  // Ash windows do not have a traditional visible window frame.  Window content
+  // extends to the edge of the window.  We consider a small region outside the
+  // window bounds and an even smaller region overlapping the window to be the
+  // "non-client" area and use it for resizing.
+  static const int kResizeOutsideBoundsSize;
+  static const int kResizeInsideBoundsSize;
+
   FramePainter();
   ~FramePainter();
 
   // |frame| and buttons are used for layout and are not owned.
   void Init(views::Widget* frame,
             views::View* window_icon,
             views::ImageButton* maximize_button,
             views::ImageButton* close_button);
 
   // Helpers for views::NonClientFrameView implementations.
@@ skipping 53 matching lines @@
   const SkBitmap* top_right_corner_;
   const SkBitmap* header_left_edge_;
   const SkBitmap* header_right_edge_;
 
   DISALLOW_COPY_AND_ASSIGN(FramePainter);
 };
 
 }  // namespace ash
 
 #endif  // ASH_WM_FRAME_PAINTER_H_