cros: add google/mic icons to searchbox

ui/app_list/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/ui.gni")
 import("//testing/test.gni")
+import("//ui/vector_icons/vector_icons.gni")
+
+aggregate_vector_icons("app_list_vector_icons") {
+  icon_directory = "vector_icons"
+
+  icons = [
+    "ic_google_black.1x.icon",
+    "ic_google_black.icon",
+    "ic_mic_black.1x.icon",
+    "ic_mic_black.icon",
+  ]
+}
 
 component("app_list") {
   sources = [
     "app_list_constants.cc",
     "app_list_constants.h",
     "app_list_export.h",
     "app_list_features.cc",
     "app_list_features.h",
     "app_list_folder_item.cc",
     "app_list_folder_item.h",
@@ skipping 44 matching lines @@
     "search_provider.cc",
     "search_provider.h",
     "search_result.cc",
     "search_result.h",
     "search_result_observer.h",
     "speech_ui_model.cc",
     "speech_ui_model.h",
     "speech_ui_model_observer.h",
   ]
 
+  sources += get_target_outputs(":app_list_vector_icons")
+
   defines = [ "APP_LIST_IMPLEMENTATION" ]
 
   deps = [
+    ":app_list_vector_icons",
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//components/keyed_service/core",
     "//components/sync",
     "//skia",
     "//third_party/icu",
     "//ui/accessibility",
     "//ui/app_list/resources",
     "//ui/base",
@@ skipping 190 matching lines @@
       "views/speech_view_unittest.cc",
       "views/test/apps_grid_view_test_api.cc",
       "views/test/apps_grid_view_test_api.h",
     ]
     deps += [
       "//ui/views",
       "//ui/views:test_support",
     ]
   }
 }