fix path to webkit source dir so that we can include

webkit/appcache/webkit_appcache.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.
 
 {
+  'variables': {
+    'conditions': [
+      ['inside_chromium_build==0', {
+        'webkit_src_dir': '../../../../..',
+      },{
+        'webkit_src_dir': '../../third_party/WebKit',
+      }],
+      ],
+    },
   'targets': [
     {
       'target_name': 'appcache',
       'variables': { 'enable_wexit_time_destructors': 1, },
       'defines': [
         'APPCACHE_IMPLEMENTATION',
       ],
       'dependencies': [
         'quota',
         '<(DEPTH)/base/base.gyp:base_i18n',
@@ skipping 55 matching lines @@
       ],
       'conditions': [
         [# TODO(dpranke): Remove once the circular dependencies in
          # WebKit.gyp are fixed on the mac.
          # See https://bugs.webkit.org/show_bug.cgi?id=68463
          'OS=="mac"', {
           'type': 'static_library',
          }, {
           'type': '<(component)',
           'dependencies': [
-              '<(DEPTH)/third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:webkit',
+              '<(webkit_src_dir)/Source/WebKit/chromium/WebKit.gyp:webkit',
           ],
          }],
         ['inside_chromium_build==0', {
           'dependencies': [
             '<(DEPTH)/webkit/support/setup_third_party.gyp:third_party_headers',
           ],
         }],
       ],
     },
   ],
 }