[MacViews] Add NativeAppWindowViewsMac and port HideWithApp behavior from NativeAppWindowCocoa.

chrome/chrome_browser_ui.gypi

 # Copyright 2012 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.
 
 {
   'variables': {
     # There are two sections of sources:
     # * "Platform"-based sources (OS, toolkit, etc.)
     # * Feature/directory-based sources (e.g., history, printing)
 
@@ skipping 2285 matching lines @@
       'browser/ui/views/validation_message_bubble_view.h',
       'browser/ui/views/web_contents_modal_dialog_manager_views.cc',
       'browser/ui/views/website_settings/permission_selector_view.cc',
       'browser/ui/views/website_settings/permission_selector_view.h',
       'browser/ui/views/website_settings/permission_selector_view_observer.h',
       'browser/ui/views/website_settings/permissions_bubble_view.cc',
       'browser/ui/views/website_settings/permissions_bubble_view.h',
       'browser/ui/views/website_settings/website_settings_popup_view.cc',
       'browser/ui/views/website_settings/website_settings_popup_view.h',
     ],
+    # MacViews sources that we still want to keep behind a compile-time flag.
+    # TODO(jackhou): Move items to chrome_browser_ui_views_sources when they
+    # migrate from mac_views_browser to a chrome://flag.
+    'chrome_browser_ui_views_mac_experimental_sources': [
+      'browser/ui/views/apps/chrome_app_window_client_views_mac.mm',
+      'browser/ui/views/apps/chrome_native_app_window_views_mac.h',
+      'browser/ui/views/apps/chrome_native_app_window_views_mac.mm',
+    ],
     # Windows-only. Assume ash/aura/views.
     'chrome_browser_ui_win_sources': [
       'browser/ui/network_profile_bubble.cc',
       'browser/ui/network_profile_bubble.h',
       'browser/ui/views/color_chooser_dialog.cc',
       'browser/ui/views/color_chooser_dialog.h',
       'browser/ui/views/frame/browser_desktop_window_tree_host.h',
       'browser/ui/views/frame/browser_desktop_window_tree_host_win.cc',
       'browser/ui/views/frame/browser_desktop_window_tree_host_win.h',
       'browser/ui/views/frame/browser_frame_ashwin.cc',
@@ skipping 529 matching lines @@
             ['chromeos == 0 and OS!="mac"', {
               'sources': [ '<@(chrome_browser_ui_views_non_chromeos_sources)' ],
             }],
             ['use_ash == 1', {
               'sources': [ '<@(chrome_browser_ui_ash_views_sources)' ],
             }],
             ['OS=="mac"', {
               'conditions': [
                 ['mac_views_browser==1', {
                   'sources': [
-                    'browser/ui/views/apps/chrome_app_window_client_views_mac.mm',
+                    '<@(chrome_browser_ui_views_mac_experimental_sources)',
                   ],
                   'sources!': [
                     'browser/ui/cocoa/apps/chrome_app_window_client_cocoa.mm',
                     'browser/ui/cocoa/bookmarks/bookmark_drag_drop_cocoa.mm',
                     'browser/ui/cocoa/browser_window_factory_cocoa.mm',
                     'browser/ui/cocoa/infobars/confirm_infobar_controller.mm',
                     'browser/ui/cocoa/tab_dialogs_cocoa.mm',
                   ],
                   'dependencies': [
                     '<(DEPTH)/extensions/components/extensions_components.gyp:native_app_window',
@@ skipping 281 matching lines @@
           ],
           'sources': [
             '<@(chrome_browser_ui_non_mobile_sources)',
             '<@(chrome_browser_ui_omnibox_non_mobile_sources)',
           ],
         }],
       ],
     },
   ],
 }