Experimental app list: Added "All apps" button on start page.

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")
 
 component("app_list") {
   sources = [
     "app_list_constants.cc",
     "app_list_constants.h",
@@ skipping 77 matching lines @@
 
   if (use_aura) {
     deps += [
       "//ui/aura",
       "//ui/wm",
     ]
   }
 
   if (toolkit_views) {
     sources += [
+      "views/all_apps_tile_item_view.cc",
+      "views/all_apps_tile_item_view.h",
       "views/apps_container_view.cc",
       "views/apps_container_view.h",
       "views/app_list_background.cc",
       "views/app_list_background.h",
       "views/app_list_drag_and_drop_host.h",
       "views/app_list_folder_view.cc",
       "views/app_list_folder_view.h",
       "views/app_list_item_view.cc",
       "views/app_list_item_view.h",
       "views/app_list_main_view.cc",
@@ skipping 31 matching lines @@
       "views/search_result_actions_view.h",
       "views/search_result_list_view.cc",
       "views/search_result_list_view.h",
       "views/search_result_list_view_delegate.h",
       "views/search_result_view.cc",
       "views/search_result_view.h",
       "views/speech_view.cc",
       "views/speech_view.h",
       "views/start_page_view.cc",
       "views/start_page_view.h",
+      "views/search_result_tile_item_view.cc",
+      "views/search_result_tile_item_view.h",
       "views/tile_item_view.cc",
       "views/tile_item_view.h",
       "views/top_icon_animation_view.cc",
       "views/top_icon_animation_view.h",
     ]
     deps += [
       "//ui/events",
       "//ui/views",
     ]
   }
@@ skipping 102 matching lines @@
       "cocoa/app_list_view_controller_unittest.mm",
       "cocoa/app_list_window_controller_unittest.mm",
       "cocoa/apps_grid_controller_unittest.mm",
       "cocoa/apps_search_box_controller_unittest.mm",
       "cocoa/apps_search_results_controller_unittest.mm",
       "cocoa/test/apps_grid_controller_test_helper.h",
       "cocoa/test/apps_grid_controller_test_helper.mm",
     ]
   }
 }