Define MOJO_SHELL_CLIENT uniformly across content

content/ppapi_plugin/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.
 
 group("ppapi_plugin") {
   visibility = [ "//content/*" ]
 
   if (is_component_build) {
     public_deps = [
       "//content",
@@ skipping 14 matching lines @@
     "plugin_process_dispatcher.cc",
     "plugin_process_dispatcher.h",
     "ppapi_blink_platform_impl.cc",
     "ppapi_blink_platform_impl.h",
     "ppapi_broker_main.cc",
     "ppapi_plugin_main.cc",
     "ppapi_thread.cc",
     "ppapi_thread.h",
   ]
 
-  configs += [ "//content:content_implementation" ]
+  configs += [
+    "//content:content_implementation",
+    "//content/public/common:mojo_shell_client",
+  ]
 
   deps = [
     "//base",
     "//content:export",
     "//content/public/child:child_sources",
     "//content/public/common:common_sources",
     "//mojo/application/public/interfaces",
     "//ppapi/proxy:ipc",
     "//skia",
     "//third_party/icu",
     "//third_party/WebKit/public:blink",
     "//ui/base",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 }