Implement <appview> skeleton.

chrome/chrome_browser.gypi

 # Copyright 2012 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': {
     # All .cc, .h, .m, and .mm files under browser except for:
     # * tests and mocks.
     # * code below browser/chromeos
     # * code below browser/extensions
@@ skipping 1687 matching lines @@
     ],
     'chrome_browser_extensions_sources': [
       'browser/accessibility/accessibility_extension_api.cc',
       'browser/accessibility/accessibility_extension_api.h',
       'browser/autocomplete/keyword_extensions_delegate_impl.cc',
       'browser/autocomplete/keyword_extensions_delegate_impl.h',
       'browser/content_settings/content_settings_custom_extension_provider.cc',
       'browser/content_settings/content_settings_custom_extension_provider.h',
       'browser/content_settings/content_settings_internal_extension_provider.cc',
       'browser/content_settings/content_settings_internal_extension_provider.h',
+      'browser/guest_view/app_view/app_view_guest.cc',
+      'browser/guest_view/app_view/app_view_guest.h',
       'browser/guest_view/guest_view_constants.cc',
       'browser/guest_view/guest_view_constants.h',
       'browser/guest_view/guest_view_base.cc',
       'browser/guest_view/guest_view_base.h',
       'browser/guest_view/guest_view_manager_factory.h',
       'browser/guest_view/guest_view_manager.cc',
       'browser/guest_view/guest_view_manager.h',
       'browser/guest_view/guest_view.h',
       'browser/guest_view/web_view/context_menu_content_type_web_view.cc',
       'browser/guest_view/web_view/context_menu_content_type_web_view.h',
@@ skipping 1872 matching lines @@
             'package_name': 'org/chromium/chrome/browser',
             'template_deps': ['browser/android/tab_load_status.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }