experimental/tools/coreGraphicsPdf2png: remove skia dependency

gyp/experimental.gyp

 # Copyright 2015 Google Inc.
 #
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 # GYP file to build experimental directory.
 {
   'targets': [
     {
       'target_name': 'experimental',
       'type': 'static_library',
@@ skipping 13 matching lines @@
       },
     },
   ],
   'conditions': [
     ['skia_os == "mac"',
       {
         'targets': [
           {
             'target_name': 'coreGraphicsPdf2png',
             'type': 'executable',
-            'include_dirs': [ '../src/core', ],
             'sources': [ '../experimental/tools/coreGraphicsPdf2png.cpp', ],
-            'dependencies': [ 'skia_lib.gyp:skia_lib', 'libpng.gyp:libpng', ],
+            'link_settings': {
+              'libraries': [
+                '$(SDKROOT)/System/Library/Frameworks/ApplicationServices.framework',
+              ],
+            },
           },
         ],
       },
     ],
   ],
 }