[Mac/GN] Initial framework bundle support.

ui/base/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/buildflag_header.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/sanitizers/sanitizers.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 import("//ui/ozone/ozone.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
+} else if (is_mac) {
+  import("//build/config/mac/rules.gni")
 }
 
 build_ime = !is_ios
 
 # As part of building Chrome on iOS, it is necessary to run a tool on
 # the host to load datapack and generate output in a format defined
 # by the platform (this is to support notifications).
 #
 # Introduce a standalone target that build on both 'host' and 'target'
 # toolset that just build the support to load datapack. The dependency
@@ skipping 858 matching lines @@
     deps += [
       "//ui/events/platform/x11",
       "//ui/gfx/x",
     ]
 
     data_deps += [ "//tools/xdisplaycheck" ]
   }
 
   if (is_mac) {
     deps += [
+      ":ui_unittests Framework",
       "//third_party/mozilla",
-      #'ui_base_tests_bundle',  TODO(GYP)
     ]
   }
 
   if (use_aura || toolkit_views) {
     sources += [ "dragdrop/os_exchange_data_unittest.cc" ]
 
     deps += [
       "//ui/events",
       "//ui/events/platform",
     ]
@@ skipping 34 matching lines @@
     ]
   }
   if (is_mac) {
     data += [ "$root_out_dir/ui_unittests Framework.framework/" ]
 
     if (is_asan && symbol_level == 0) {
       data += [ "$root_out_dir/ui_base_unittests.dSYM/" ]
     }
   }
 }
-# TODO(GYP) Mac (ui_base_tests_bundle)
+
+if (is_mac) {
+  mac_framework("ui_unittests Framework") {
+    testonly = true
+    deps = [
+      "//ui/resources:ui_test_pak_bundle_data",
+    ]
+    info_plist = "test/framework-Info.plist"
+  }
+}