Revive experiment to isolate shell operations.

chrome/chrome_common.gypi

 # Copyright (c) 2013 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': {
     # File lists shared with GN build.
     'chrome_common_sources': [
       'common/all_messages.h',
       'common/attrition_experiments.h',
@@ skipping 642 matching lines @@
         'mojom_files': [
           'common/image_decoder.mojom',
           'common/resource_usage_reporter.mojom',
           'common/shell_handler_win.mojom',
         ],
         'mojom_typemaps': [
           '../skia/public/interfaces/skbitmap.typemap',
         ],
       },
       'dependencies': [
+        '../mojo/mojo_base.gyp:mojo_common_custom_types_mojom',
         '../mojo/mojo_public.gyp:mojo_cpp_bindings',
         '../skia/skia.gyp:skia_mojo',
       ],
       'includes': [ '../mojo/mojom_bindings_generator_explicit.gypi' ],
     },
     {
       # GN version: //chrome/common:mojo_bindings
       'target_name': 'common_mojo_bindings',
       'type': 'static_library',
       'dependencies': [
@@ skipping 19 matching lines @@
           ],
           'dependencies': [
             'installer_util',
             '../base/base.gyp:base',
           ],
         },
       ],
     }],
   ],
 }