Adds more to viewmanager

mojo/mojo_services.gypi

 {
   'targets': [
     {
       'target_name': 'mojo_gles2_bindings',
       'type': 'static_library',
       'sources': [
         'services/gles2/command_buffer.mojom',
         'services/gles2/command_buffer_type_conversions.cc',
         'services/gles2/command_buffer_type_conversions.h',
         'services/gles2/mojo_buffer_backing.cc',
@@ skipping 165 matching lines @@
             'mojo_system_impl',
             'mojo_view_manager_bindings',
           ],
           'sources': [
             'services/view_manager/ids.h',
             'services/view_manager/node.cc',
             'services/view_manager/node.h',
             'services/view_manager/node_delegate.h',
             'services/view_manager/root_node_manager.cc',
             'services/view_manager/root_node_manager.h',
+            'services/view_manager/view.cc',
+            'services/view_manager/view.h',
             'services/view_manager/view_manager.cc',
             'services/view_manager/view_manager_connection.cc',
             'services/view_manager/view_manager_connection.h',
             'services/view_manager/view_manager_export.h',
           ],
           'defines': [
             'MOJO_VIEW_MANAGER_IMPLEMENTATION',
           ],
         },
         {
@@ skipping 19 matching lines @@
           'target_name': 'package_mojo_view_manager',
           'variables': {
             'app_name': 'mojo_view_manager',
           },
           'includes': [ 'build/package_app.gypi' ],
         },
       ],
     }],
   ],
 }