Add ax_gen dependency to app_list_presenter test targets

ui/app_list/presenter/BUILD.gn

 # Copyright 2016 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("//mojo/public/tools/bindings/mojom.gni")
 import("//testing/test.gni")
 
 assert(use_aura)
 
@@ skipping 32 matching lines @@
   ]
   deps = [
     "//components/mus/public/interfaces",
   ]
 }
 
 source_set("test_support") {
   sources = [
     "test/app_list_presenter_impl_test_api.cc",
     "test/app_list_presenter_impl_test_api.h",
+
+    # Temporary dependency to fix compile flake in http://crbug.com/611898.
+    # TODO(tapted): Remove once http://crbug.com/612382 is fixed.
+    "//ui/accessibility:ax_gen",
   ]
 
   public_deps = [
     ":presenter",
   ]
   deps = [
     "//base",
   ]
 }
 
@@ skipping 10 matching lines @@
     ":test_support",
     "//base",
     "//base/test:test_support",
     "//testing/gtest",
     "//ui/app_list:test_support",
     "//ui/aura:aura",
     "//ui/aura:test_support",
     "//ui/base",
     "//ui/gl:test_support",
     "//ui/wm:wm",
+
+    # Temporary dependency to fix compile flake in http://crbug.com/611898.
+    # TODO(tapted): Remove once http://crbug.com/612382 is fixed.
+    "//ui/accessibility:ax_gen",
   ]
 
   data_deps = [
     "//ui/resources:ui_test_pak_data",
   ]
 }