Replace most uses of ViewManagerInitService with client lib ViewManager::Embed() to offer the same …

mojo/mojo_services.gypi

 # Copyright (c) 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.
 
 {
   'targets': [
     {
       # GN version: //mojo/services/clipboard/
       'target_name': 'mojo_clipboard',
       'type': 'loadable_module',
@@ skipping 586 matching lines @@
       'includes': [
         'mojo_public_gles2_for_loadable_module.gypi',
       ],
       'sources': [
         'services/public/cpp/view_manager/lib/bitmap_uploader.cc',
         'services/public/cpp/view_manager/lib/bitmap_uploader.h',
         'services/public/cpp/view_manager/lib/view.cc',
         'services/public/cpp/view_manager/lib/view_manager_client_factory.cc',
         'services/public/cpp/view_manager/lib/view_manager_client_impl.cc',
         'services/public/cpp/view_manager/lib/view_manager_client_impl.h',
+        'services/public/cpp/view_manager/lib/view_manager_context.cc',
         'services/public/cpp/view_manager/lib/view_observer.cc',
         'services/public/cpp/view_manager/lib/view_private.cc',
         'services/public/cpp/view_manager/lib/view_private.h',
         'services/public/cpp/view_manager/view.h',
         'services/public/cpp/view_manager/view_manager.h',
         'services/public/cpp/view_manager/view_manager_client_factory.h',
+        'services/public/cpp/view_manager/view_manager_context.h',
         'services/public/cpp/view_manager/view_manager_delegate.h',
         'services/public/cpp/view_manager/view_observer.h',
         'services/public/cpp/view_manager/window_manager_delegate.h',
       ],
       'export_dependent_settings': [
         'mojo_gpu_bindings',
         'mojo_surfaces_bindings',
         'mojo_view_manager_bindings',
       ],
     },
@@ skipping 343 matching lines @@
               'dependencies': [
                 '../ui/gfx/x/gfx_x11.gyp:gfx_x11',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }