Split extension_base.* out of bindings_utils.*.

chrome/chrome_renderer.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.
 
 {
   'targets': [
     {
       'target_name': 'renderer',
       'type': 'static_library',
       'dependencies': [
@@ skipping 45 matching lines @@
         'renderer/automation/dom_automation_v8_extension.cc',
         'renderer/automation/dom_automation_v8_extension.h',
         'renderer/extensions/bindings_utils.cc',
         'renderer/extensions/bindings_utils.h',
         'renderer/extensions/chrome_app_bindings.cc',
         'renderer/extensions/chrome_app_bindings.h',
         'renderer/extensions/chrome_webstore_bindings.cc',
         'renderer/extensions/chrome_webstore_bindings.h',
         'renderer/extensions/event_bindings.cc',
         'renderer/extensions/event_bindings.h',
+        'renderer/extensions/extension_base.cc',
+        'renderer/extensions/extension_base.h',
         'renderer/extensions/extension_dispatcher.cc',
         'renderer/extensions/extension_dispatcher.h',
         'renderer/extensions/extension_groups.h',
         'renderer/extensions/extension_helper.cc',
         'renderer/extensions/extension_helper.h',
         'renderer/extensions/extension_process_bindings.cc',
         'renderer/extensions/extension_process_bindings.h',
         'renderer/extensions/extension_resource_request_policy.cc',
         'renderer/extensions/extension_resource_request_policy.h',
         'renderer/extensions/js_only_v8_extensions.cc',
@@ skipping 144 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }