ui/gfx: Remove unused win_util.{h,cc} component all together.

ui/ui.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'ui_resources.gypi',
@@ skipping 473 matching lines @@
           ],
         }],
         ['OS=="win"', {
           'sources': [
             'gfx/gdi_util.cc',
             'gfx/gdi_util.h',
             'gfx/icon_util.cc',
             'gfx/icon_util.h',
             'gfx/native_theme_win.cc',
             'gfx/native_theme_win.h',
-            'gfx/win_util.cc',
-            'gfx/win_util.h',
           ],
           'sources!': [
             'base/touch/touch_factory.cc',
             'base/touch/touch_factory.h',
             'gfx/pango_util.h',
             'gfx/pango_util.cc',
             'gfx/platform_font_pango.cc',
             'gfx/platform_font_pango.h',
           ],
           'include_dirs': [
@@ skipping 175 matching lines @@
                 'shutil.copyfile(\'<(ui_copy_target)\', \'<(ui_copy_dest)\'); ' \
                 'os.chmod(\'<(ui_copy_dest)\', 0700)'
               ]
             }
           ],
         },
       ],
     }],
   ],
 }