Remove all exclude rules that filename_rules.gypi already handles.

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,
   },
   'targets': [
     {
@@ skipping 481 matching lines @@
               'sources!': [
                 'base/view_prop.cc',
                 'base/view_prop.h',
               ],
             }],
           ],
           'sources!': [
             'base/dragdrop/drag_drop_types.h',
             'base/dragdrop/os_exchange_data.cc',
           ],
-          'sources/': [
-            ['exclude', '^base/win/'],
-          ],
         }],
         ['OS=="mac"', {
           'dependencies': [
             '../third_party/mozilla/mozilla.gyp:mozilla',
           ],
           'sources!': [
             'base/dragdrop/drag_utils.cc',
             'base/dragdrop/drag_utils.h',
           ],
           'link_settings': {
@@ skipping 126 matching lines @@
            'variables': {
              'jni_gen_package': 'ui',
              'jni_generator_ptr_type': 'long',
            },
            'includes': [ '../build/jni_generator.gypi' ],
          },
        ],
     }],
   ],
 }