Refactor OS-dependent filename exclusion patterns

chrome/chrome.gyp

 # Copyright (c) 2009 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,
 
     'variables': {
       'version_py_path': 'tools/build/version.py',
@@ skipping 172 matching lines @@
       }],
       ['target_arch=="x64"', {
         'nacl_defines': [
           # TODO(gregoryd): consider getting this from NaCl's common.gypi
           'NACL_TARGET_SUBARCH=64',
           'NACL_BUILD_SUBARCH=64',
         ],
       }],
     ],  # conditions
   },  # variables
-  'target_defaults': {
-    'sources/': [
-      ['exclude', '/(cocoa|gtk|win)/'],
-      ['exclude', '_(cocoa|gtk|linux|mac|posix|skia|win|views|x)(_unittest)?(_mac)?\\.(cc|mm?)$'],
-      ['exclude', '/(gtk|win|x11)_[^/]*\\.cc$'],
-    ],
-    'conditions': [
-      ['OS=="linux" or OS=="freebsd"', {'sources/': [
-        ['include', '/gtk/'],
-        ['include', '_(gtk|linux|posix|skia|x)(_unittest)?\\.cc$'],
-        ['include', '/(gtk|x11)_[^/]*\\.cc$'],
-      ]}],
-      ['OS=="mac"', {'sources/': [
-        ['include', '/cocoa/'],
-        ['include', '_(cocoa|mac|posix)(_unittest)?(_mac)?\\.(cc|mm?)$'],
-      ]}, { # else: OS != "mac"
-        'sources/': [
-          ['exclude', '\\.mm?$'],
-        ],
-      }],
-      ['OS=="win"', {'sources/': [
-        ['include', '_(views|win)(_unittest)?\\.cc$'],
-        ['include', '/win/'],
-        ['include', '/(views|win)_[^/]*\\.cc$'],
-      ]}],
-      ['OS=="linux" and toolkit_views==1', {'sources/': [
-        ['include', '_views\\.cc$'],
-      ]}],
-    ],
-  },
   'targets': [
     {
       # TODO(mark): It would be better if each static library that needed
       # to run grit would list its own .grd files, but unfortunately some
       # of the static libraries currently have circular dependencies among
       # generated headers.
       'target_name': 'chrome_resources',
       'type': 'none',
       'msvs_guid': 'B95AB527-F7DB-41E9-AD91-EB51EE0F56BE',
       'variables': {
@@ skipping 6743 matching lines @@
       ]
     }],
   ],  # 'conditions'
 }
 
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