Remove MojoApplication[Host] & ApplicationSetup.

content/content_browser.gypi

 # Copyright (c) 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../cc/cc.gyp:cc',
     '../cc/cc.gyp:cc_surfaces',
     '../components/components.gyp:display_compositor',
@@ skipping 1113 matching lines @@
       'browser/memory/memory_pressure_controller_impl.h',
       'browser/message_port_message_filter.cc',
       'browser/message_port_message_filter.h',
       'browser/message_port_provider.cc',
       'browser/message_port_service.cc',
       'browser/message_port_service.h',
       'browser/mime_registry_impl.cc',
       'browser/mime_registry_impl.h',
       'browser/mojo/constants.cc',
       'browser/mojo/constants.h',
-      'browser/mojo/mojo_application_host.cc',
-      'browser/mojo/mojo_application_host.h',
       'browser/mojo/mojo_child_connection.cc',
       'browser/mojo/mojo_child_connection.h',
       'browser/mojo/mojo_shell_context.cc',
       'browser/mojo/mojo_shell_context.h',
       'browser/mojo/service_registrar_android.cc',
       'browser/mojo/service_registrar_android.h',
       'browser/net/browser_online_state_observer.cc',
       'browser/net/browser_online_state_observer.h',
       'browser/net/network_errors_listing_ui.cc',
       'browser/net/network_errors_listing_ui.h',
@@ skipping 1049 matching lines @@
       ],
     }],
     ['OS != "mac" and OS != "android"', {
       'sources!': [
         'browser/gpu/gpu_surface_tracker.cc',
         'browser/gpu/gpu_surface_tracker.h',
       ],
     }],
   ],
 }