[Reland] Mojo: Eliminate duplicate C API symbols

services/shell/runner/host/BUILD.gn

 # Copyright 2015 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("//mojo/public/mojo_application.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 
 group("host") {
   testonly = true
 
   deps = [
     ":lib",
     ":mojo_runner_host_unittests",
   ]
 }
 
 source_set("native_application_support") {
   sources = [
     "native_application_support.cc",
     "native_application_support.h",
   ]
 
   deps = [
     "//base",
+    "//mojo/edk/system",
     "//services/shell",
   ]
 
   # This target has to include the public thunk headers, which generally
   # shouldn't be included without picking an implementation. We are providing
   # the implementation but the thunk header target cannot declare that we are
   # permitted to include it since it's in the public SDK and we are not.
   # Suppress include checking so we can still check the rest of the targets in
   # this file.
   check_includes = false
@@ skipping 82 matching lines @@
     ":lib",
     "//base",
     "//base/test:test_support",
     "//mojo/edk/system",
     "//services/shell",
     "//services/shell/runner:init",
     "//services/shell/runner/common",
     "//testing/gtest",
   ]
 }