Split feature definitions into extensions and chrome features.

extensions/extensions_resources.gyp

Index: extensions/extensions_resources.gyp
diff --git a/extensions/extensions_resources.gyp b/extensions/extensions_resources.gyp
new file mode 100644
index 0000000000000000000000000000000000000000..6c837b872038ccfa0afdcffc97fc8f0bc2c5660a
--- /dev/null
+++ b/extensions/extensions_resources.gyp
@@ -0,0 +1,25 @@
+# Copyright 2014 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': {
+    'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/extensions',
+  },
+  'targets': [
+    {
+      'target_name': 'extensions_resources',
+      'type': 'none',
+      'actions': [
+        # Data resources.
+        {
+          'action_name': 'extensions_resources',
+          'variables': {
+            'grit_grd_file': 'extensions_resources.grd',
+          },
+          'includes': [ '../build/grit_action.gypi' ],
+        },
+      ],
+    }
+  ]
+}