Enable some skia unittests on linux and mac.

webkit/tools/test_shell/test_shell.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,
     'test_shell_windows_resource_files': [
       'resources/test_shell.rc',
       'resources/pan_east.cur',
@@ skipping 515 matching lines @@
             'image_decoder_unittest.h',
           ],
           'sources': [
             '../../../skia/ext/skia_utils_mac_unittest.mm',
           ],
         }],
         ['OS=="win"', {
           'msvs_disabled_warnings': [ 4800 ],
         }, {  # else: OS!=win
           'sources!': [
-            '../../../skia/ext/image_operations_unittest.cc',
-            '../../../skia/ext/skia_utils_unittest.cc',
             '../../../skia/ext/vector_canvas_unittest.cc',
             '../webcore_unit_tests/UniscribeHelper_unittest.cpp',
             '../webcore_unit_tests/TransparencyWin_unittest.cpp',
           ],
         }],
       ],
     },
   ],
   'conditions': [
     ['OS=="linux"', {
@@ skipping 80 matching lines @@
           'link_settings': {
             'libraries': [
               '$(SDKROOT)/System/Library/Frameworks/AppKit.framework',
             ],
           },
         },
       ]
     }],
   ],
 }