Emit OnNativeWidgetDestroying() before clearing the NSWindowDelegate.

chrome/test/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/chrome_build.gni")
 import("//build/config/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
@@ skipping 2095 matching lines @@
           "../browser/ui/views/location_bar/zoom_bubble_view_browsertest.cc",
           "../browser/ui/views/media_router/media_router_ui_browsertest.cc",
           "../browser/ui/views/passwords/password_dialog_view_browsertest.cc",
           "../browser/ui/views/task_manager_view_browsertest.cc",
           "../browser/ui/views/toolbar/browser_actions_container_browsertest.cc",
           "../browser/ui/views/toolbar/toolbar_view_browsertest.cc",
           "../browser/ui/views/translate/translate_bubble_view_browsertest.cc",
           "../browser/ui/views/web_dialog_view_browsertest.cc",
         ]
       }
+      if (is_mac && mac_views_browser) {
+        sources += [
+          "../browser/ui/views/frame/browser_view_browsertest_mac.mm",
+        ]
+      }
     }
 
     if (is_linux && !is_component_build) {
       # Set rpath to find the CDM adapter even in a non-component build.
       configs += [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
     }
 
     if (is_chromeos) {
       sources += [
         "../browser/apps/custom_launcher_page_browsertest_views.cc",
@@ skipping 2873 matching lines @@
       "touch_hud",
       "ui",
     ]
 
     if (is_linux && !is_android) {
       deps += [ "//components/font_service:manifest" ]
       packaged_services += [ "font_service" ]
     }
   }
 }