Remove opaque-frame-only code to reduce top resize border size by 1 px.

chrome/browser/ui/views/frame/opaque_browser_frame_view.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 CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/view_ids.h"
@@ skipping 102 matching lines @@
                                               int pushed_image_id,
                                               int mask_image_id,
                                               int accessibility_string_id,
                                               ViewID view_id);
 
   // Returns the thickness of the border that makes up the window frame edges.
   // This does not include any client edge.  If |restored| is true, this is
   // calculated as if the window was restored, regardless of its current state.
   int FrameBorderThickness(bool restored) const;
 
-  // Returns the height of the top resize area.  This is smaller than the frame
-  // border height in order to increase the window draggable area.
-  int TopResizeHeight() const;
-
   // Returns true if the specified point is within the avatar menu buttons.
   bool IsWithinAvatarMenuButtons(const gfx::Point& point) const;
 
   // Returns the thickness of the entire nonclient left, right, and bottom
   // borders, including both the window frame and any client edge.
   int NonClientBorderThickness() const;
 
   // Returns the bounds of the titlebar icon (or where the icon would be if
   // there was one).
   gfx::Rect IconBounds() const;
@@ skipping 31 matching lines @@
   // Background painter for the window frame.
   scoped_ptr<views::FrameBackground> frame_background_;
 
   // Observer that handles platform dependent configuration.
   scoped_ptr<OpaqueBrowserFrameViewPlatformSpecific> platform_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(OpaqueBrowserFrameView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_FRAME_OPAQUE_BROWSER_FRAME_VIEW_H_