Rename range.mm to range_mac.mm.

ui/ui_base.gypi

 # Copyright (c) 2011 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.
 
 {
   'targets': [
     {
       'target_name': 'ui_base',
       'type': 'static_library',
       'dependencies': [
@@ skipping 109 matching lines @@
         'base/models/simple_menu_model.h',
         'base/models/table_model.cc',
         'base/models/table_model.h',
         'base/models/table_model_observer.h',
         'base/models/tree_model.cc',
         'base/models/tree_model.h',
         'base/models/tree_node_iterator.h',
         'base/models/tree_node_model.h',
         'base/range/range.cc',
         'base/range/range.h',
-        'base/range/range.mm',
+        'base/range/range_mac.mm',
+        'base/range/range_win.cc',
         'base/resource/data_pack.cc',
         'base/resource/data_pack.h',
         'base/resource/resource_bundle.cc',
         'base/resource/resource_bundle.h',
         'base/resource/resource_bundle_linux.cc',
         'base/resource/resource_bundle_mac.mm',
         'base/resource/resource_bundle_posix.cc',
         'base/resource/resource_bundle_win.cc',
         'base/text/bytes_formatting.cc',
         'base/text/bytes_formatting.h',
@@ skipping 98 matching lines @@
       ],
     },
   ],
 }
 
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