mojo: terminate apps if the shell goes away

mojo/services/native_viewport/BUILD.gn

 # Copyright 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.
 
 import("//build/config/ui.gni")
 
 component("native_viewport") {
   output_name = "mojo_native_viewport"
 
   deps = [
     "//base",
     "//ui/events",
     "//ui/gfx",
     "//ui/gfx/geometry",
-    "//mojo/public/cpp/application",
+    "//mojo/public/cpp/application:chromium",
     "//mojo/common",
     "//mojo/environment:chromium",
     "//mojo/services/public/cpp/geometry",
     "//mojo/services/public/interfaces/geometry",
     "//mojo/services/gles2",
     "//mojo/services/public/cpp/input_events",
     "//mojo/services/public/interfaces/native_viewport",
   ]
 
   defines = [ "MOJO_NATIVE_VIEWPORT_IMPLEMENTATION" ]
@@ skipping 28 matching lines @@
   }
 
   if (use_ozone) {
     sources += [ "native_viewport_ozone.cc" ]
   }
 
   if (is_component_build) {
     deps += [ "//mojo/system" ]
   }
 }