[MD Bookmarks] Add skeleton for MD Bookmarks.

chrome/browser/resources/md_bookmarks/compiled_resources2.gyp

+# Copyright 2016 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': 'app',
+      'dependencies': [
+        '<(EXTERNS_GYP):chrome_extensions',
+        'store'
+      ],
+      'includes': ['../../../../third_party/closure_compiler/compile_js2.gypi'],
+    },
+    {
+      'target_name': 'store',
+      'dependencies': [
+        '<(EXTERNS_GYP):chrome_extensions'
+      ],
+      'includes': ['../../../../third_party/closure_compiler/compile_js2.gypi']
+    },
+    {
+      'target_name': 'toolbar',
+      'dependencies': [
+        '<(DEPTH)/ui/webui/resources/cr_elements/cr_action_menu/compiled_resources2.gyp:cr_action_menu',
+      ],
+      'includes': ['../../../../third_party/closure_compiler/compile_js2.gypi'],
+    },
+  ]
+}