RWHI should implement BrowserAccessibilityDelegate

content/content_browser.gypi

 # Copyright (c) 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.
 
 {
   'dependencies': [
     '../base/base.gyp:base_static',
     '../crypto/crypto.gyp:crypto',
     '../google_apis/google_apis.gyp:google_apis',
     '../net/net.gyp:net',
@@ skipping 220 matching lines @@
     'browser/accessibility/accessibility_tree_formatter_utils_win.h',
     'browser/accessibility/accessibility_tree_formatter_win.cc',
     'browser/accessibility/accessibility_ui.cc',
     'browser/accessibility/accessibility_ui.h',
     'browser/accessibility/browser_accessibility.cc',
     'browser/accessibility/browser_accessibility.h',
     'browser/accessibility/browser_accessibility_android.cc',
     'browser/accessibility/browser_accessibility_android.h',
     'browser/accessibility/browser_accessibility_cocoa.h',
     'browser/accessibility/browser_accessibility_cocoa.mm',
-    'browser/accessibility/browser_accessibility_delegate_mac.h',
     'browser/accessibility/browser_accessibility_mac.h',
     'browser/accessibility/browser_accessibility_mac.mm',
     'browser/accessibility/browser_accessibility_manager.cc',
     'browser/accessibility/browser_accessibility_manager.h',
     'browser/accessibility/browser_accessibility_manager_android.cc',
     'browser/accessibility/browser_accessibility_manager_android.h',
     'browser/accessibility/browser_accessibility_manager_mac.h',
     'browser/accessibility/browser_accessibility_manager_mac.mm',
     'browser/accessibility/browser_accessibility_manager_win.cc',
     'browser/accessibility/browser_accessibility_manager_win.h',
@@ skipping 1473 matching lines @@
         '../build/linux/system.gyp:dbus',
         '../dbus/dbus.gyp:dbus',
       ],
     }, {  # OS != "linux" or use_dbus==0
       'sources!': [
         'browser/geolocation/wifi_data_provider_linux.cc',
       ],
     }],
   ],
 }