Make certificate viewer non-modal using BaseShellDialog to fix aura painting

ui/shell_dialogs/shell_dialogs.gyp

 # Copyright 2013 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': {
     'chromium_code': 1,
   },
   'targets': [
     {
       'target_name': 'shell_dialogs',
       'type': '<(component)',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../base/base.gyp:base_i18n',
+        '../../net/net.gyp:net',
         '../../skia/skia.gyp:skia',
         '../base/strings/ui_strings.gyp:ui_strings',
         '../ui.gyp:ui',
       ],
       'defines': [
         'SHELL_DIALOGS_IMPLEMENTATION',
       ],
       'sources': [
         'android/shell_dialogs_jni_registrar.cc',
         'android/shell_dialogs_jni_registrar.h',
         'base_shell_dialog.cc',
         'base_shell_dialog.h',
         'base_shell_dialog_win.cc',
         'base_shell_dialog_win.h',
+        'certificate_viewer_dialog_win.cc',
+        'certificate_viewer_dialog_win.h',
         'gtk/select_file_dialog_impl.cc',
         'gtk/select_file_dialog_impl.h',
         'gtk/select_file_dialog_impl_gtk.cc',
         'gtk/select_file_dialog_impl_kde.cc',
         'linux_shell_dialog.cc',
         'linux_shell_dialog.h',
         'print_settings_dialog_win.cc',
         'print_settings_dialog_win.h',
         'select_file_dialog.cc',
         'select_file_dialog.h',
@@ skipping 40 matching lines @@
           {
             'dependencies': [
               '../ui.gyp:ui_java',
             ],
           }
         ],
       ],
     },  # target_name: shell_dialogs
   ],
 }