Work around a bug in gyp triggered by webkit_appcache.gypi.

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': '../../../../..',
       },{
@@ skipping 68 matching lines @@
         'webkit_appcache.gypi',
       ],
       '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': [
-              '<(webkit_src_dir)/Source/WebKit/chromium/WebKit.gyp:webkit',
-          ],
          }],
         ['inside_chromium_build==0', {
           'dependencies': [
             '<(DEPTH)/webkit/support/setup_third_party.gyp:third_party_headers',
           ],
         }],
+        [# TODO(dpranke): Figure out why this doesn't work outside of
+         # a webkit build - this seems to be a bug in the make gyp generator.
+         'OS!="mac" and inside_chromium_build==1', {
+          'dependencies': [
+            '<(webkit_src_dir)/Source/WebKit/chromium/WebKit.gyp:webkit',
+          ],
+        }],
       ],
     },
   ],
 }