Make devtools use common generated blink source directory instead of gen/webkit.

extensions/extensions.gyp

 # Copyright 2013 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,
   },
   'targets': [
     {
@@ skipping 1117 matching lines @@
               '<(SHARED_INTERMEDIATE_DIR)/content/content_resources.pak',
               '<(SHARED_INTERMEDIATE_DIR)/content/shell_resources.pak',
               '<(SHARED_INTERMEDIATE_DIR)/extensions/extensions_browser_resources_100_percent.pak',
               '<(SHARED_INTERMEDIATE_DIR)/extensions/extensions_renderer_resources.pak',
               '<(SHARED_INTERMEDIATE_DIR)/extensions/extensions_resources.pak',
               '<(SHARED_INTERMEDIATE_DIR)/extensions/shell/app_shell_resources.pak',
               '<(SHARED_INTERMEDIATE_DIR)/extensions/strings/extensions_strings_en-US.pak',
               '<(SHARED_INTERMEDIATE_DIR)/ui/resources/ui_resources_100_percent.pak',
               '<(SHARED_INTERMEDIATE_DIR)/ui/strings/app_locale_settings_en-US.pak',
               '<(SHARED_INTERMEDIATE_DIR)/ui/strings/ui_strings_en-US.pak',
-              '<(SHARED_INTERMEDIATE_DIR)/webkit/devtools_resources.pak',
+              '<(SHARED_INTERMEDIATE_DIR)/blink/devtools_resources.pak',
             ],
             'pak_output': '<(PRODUCT_DIR)/extensions_shell_and_test.pak',
           },
           'includes': [ '../build/repack_action.gypi' ],
         },
       ],
     },
     {
       'target_name': 'extensions_unittests',
       'type': 'executable',
@@ skipping 132 matching lines @@
       'conditions': [
         ['OS=="win" and win_use_allocator_shim==1', {
           'dependencies': [
             '../base/allocator/allocator.gyp:allocator',
           ],
         }],
       ],
     },
   ]
 }