Allow for building content_shell from within WebKit

content/browser/debugger/devtools_resources.gyp

 # Copyright (c) 2012 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': 'devtools_resources',
       'type': 'none',
       'dependencies': [
-        '../../../third_party/WebKit/Source/WebKit/chromium/WebKit.gyp:generate_devtools_grd',
+        '<(webkit_src_dir)/Source/WebKit/chromium/WebKit.gyp:generate_devtools_grd',
       ],
       'variables': {
         'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/webkit',
       },
       'actions': [
         {
           'action_name': 'devtools_resources',
           # This can't use build/grit_action.gypi because the grd file
           # is generated at build time, so the trick of using grit_info to get
           # the real inputs/outputs at GYP time isn't possible.
@@ skipping 17 matching lines @@
                      '-o', '<(grit_out_dir)',
                      '-D', 'SHARED_INTERMEDIATE_DIR=<(SHARED_INTERMEDIATE_DIR)',
                      '<@(grit_defines)' ],
           'message': 'Generating resources from <(grit_grd_file)',
         }
       ],
       'includes': [ '../../../build/grit_target.gypi' ],
     },
   ],
 }