arc: Set custom icon in shelf for ARC apps.

chrome/browser/ui/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/chromecast_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 3355 matching lines @@
         "app_list/arc/arc_package_syncable_service_factory.cc",
         "app_list/arc/arc_package_syncable_service_factory.h",
         "app_list/search/arc_app_result.cc",
         "app_list/search/arc_app_result.h",
         "ash/launcher/arc_app_deferred_launcher_controller.cc",
         "ash/launcher/arc_app_deferred_launcher_controller.h",
         "ash/launcher/arc_app_deferred_launcher_item_controller.cc",
         "ash/launcher/arc_app_deferred_launcher_item_controller.h",
         "ash/launcher/arc_app_shelf_id.cc",
         "ash/launcher/arc_app_shelf_id.h",
+        "ash/launcher/arc_app_window.cc",
+        "ash/launcher/arc_app_window.h",
         "ash/launcher/arc_app_window_launcher_controller.cc",
         "ash/launcher/arc_app_window_launcher_controller.h",
         "ash/launcher/arc_app_window_launcher_item_controller.cc",
         "ash/launcher/arc_app_window_launcher_item_controller.h",
         "ash/launcher/arc_launcher_context_menu.cc",
         "ash/launcher/arc_launcher_context_menu.h",
         "ash/launcher/launcher_arc_app_updater.cc",
         "ash/launcher/launcher_arc_app_updater.h",
         "views/arc_app_dialog_view.cc",
       ]
@@ skipping 216 matching lines @@
     deps += [
       "//chrome/test:test_support_ui",
       "//components/zoom",
     ]
   }
 
   if (enable_extensions) {
     deps += [ "//extensions/browser" ]
   }
 }