Refactor extension app icon.

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 3788 matching lines @@
       "../browser/extensions/default_apps_unittest.cc",
       "../browser/extensions/display_info_provider_chromeos_unittest.cc",
       "../browser/extensions/error_console/error_console_unittest.cc",
       "../browser/extensions/event_router_forwarder_unittest.cc",
       "../browser/extensions/extension_action_icon_factory_unittest.cc",
       "../browser/extensions/extension_action_manager_unittest.cc",
       "../browser/extensions/extension_action_runner_unittest.cc",
       "../browser/extensions/extension_action_unittest.cc",
       "../browser/extensions/extension_api_unittest.cc",
       "../browser/extensions/extension_api_unittest.h",
+      "../browser/extensions/extension_app_icon_unittest.cc",
       "../browser/extensions/extension_context_menu_model_unittest.cc",
       "../browser/extensions/extension_creator_filter_unittest.cc",
       "../browser/extensions/extension_error_controller_unittest.cc",
       "../browser/extensions/extension_function_test_utils.cc",
       "../browser/extensions/extension_function_test_utils.h",
       "../browser/extensions/extension_garbage_collector_chromeos_unittest.cc",
       "../browser/extensions/extension_garbage_collector_unittest.cc",
       "../browser/extensions/extension_gcm_app_handler_unittest.cc",
       "../browser/extensions/extension_icon_manager_unittest.cc",
       "../browser/extensions/extension_install_prompt_unittest.cc",
@@ skipping 1212 matching lines @@
 }
 
 if (is_win) {
   loadable_module("conflicts_dll") {
     testonly = true
     sources = [
       "conflicts/conflicts_dll.cc",
     ]
   }
 }