Add an app_shell_unittests target

extensions/shell/app_shell.gyp

 # 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': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 166 matching lines @@
         '../browser/api/sockets_udp/sockets_udp_apitest.cc',
         'browser/shell_browsertest.cc',
         'test/shell_test.h',
         'test/shell_test.cc',
         'test/shell_test_launcher_delegate.cc',
         'test/shell_test_launcher_delegate.h',
         'test/shell_tests_main.cc',
       ],
     },
     {
+      'target_name': 'app_shell_unittests',
+      'type': 'executable',
+      'dependencies': [
+        'app_shell_lib',
+        '<(DEPTH)/base/base.gyp:base',
+        '<(DEPTH)/base/base.gyp:test_support_base',
+        '<(DEPTH)/content/content.gyp:content_app_both',
+        '<(DEPTH)/content/content_shell_and_tests.gyp:test_support_content',
+        '<(DEPTH)/extensions/extensions.gyp:extensions_shell_and_test_pak',
+        '<(DEPTH)/extensions/extensions.gyp:extensions_test_support',
+        '<(DEPTH)/testing/gtest.gyp:gtest',
+      ],
+      'sources': [
+        '../test/extensions_unittests_main.cc',
+        'browser/shell_nacl_browser_delegate_unittest.cc',
+      ],
+    },
+    {
       'target_name': 'app_shell_version_header',
       'type': 'none',
       'direct_dependent_settings': {
         'include_dirs': [
           '<(SHARED_INTERMEDIATE_DIR)',
         ],
       },
       'actions': [
         {
           'action_name': 'version_header',
@@ skipping 18 matching lines @@
             '<@(_outputs)',
           ],
           'includes': [
             '../../build/util/version.gypi',
           ],
         },
       ],
     },
   ],  # targets
 }