Convert utility process ImageWriter IPC to mojo

chrome/test/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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
@@ skipping 2535 matching lines @@
           "../browser/ui/cocoa/web_contents_modal_dialog_manager_views_mac_browsertest.mm",
           "../browser/ui/cocoa/website_settings/permission_bubble_cocoa_browser_test.mm",
         ]
       }
     }
     if (is_win) {
       sources += [ "../browser/extensions/api/networking_private/networking_private_credentials_getter_browsertest.cc" ]
     }
     if (is_mac || is_win) {
       sources += [
+        "../browser/extensions/api/image_writer_private/image_writer_utility_client_browsertest.cc",
         "../browser/extensions/api/networking_private/networking_private_apitest.cc",
         "../browser/extensions/api/networking_private/networking_private_service_client_apitest.cc",
         "../browser/media_galleries/fileapi/itunes_data_provider_browsertest.cc",
         "../browser/media_galleries/fileapi/picasa_data_provider_browsertest.cc",
       ]
       deps += [ "//components/wifi:test_support" ]
     }
     if (is_linux || is_win) {
       sources += [
         # This test is for the spelling options submenu that's only for Windows,
@@ skipping 2583 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }