Re-implement form validation message UI with native widgets. (Common and Mac)

chrome/chrome_renderer.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.
 
 {
   'targets': [
     {
       'target_name': 'renderer',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 284 matching lines @@
         'renderer/spellchecker/spellcheck.h',
         'renderer/spellchecker/spellcheck_language.cc',
         'renderer/spellchecker/spellcheck_language.h',
         'renderer/spellchecker/spellcheck_worditerator.cc',
         'renderer/spellchecker/spellcheck_worditerator.h',
         'renderer/spellchecker/spelling_engine.h',
         'renderer/static_v8_external_string_resource.cc',
         'renderer/static_v8_external_string_resource.h',
         'renderer/translate/translate_helper.cc',
         'renderer/translate/translate_helper.h',
+        'renderer/validation_message_agent.cc',
+        'renderer/validation_message_agent.h',
         'renderer/webview_color_overlay.cc',
         'renderer/webview_color_overlay.h',
       ],
       'conditions': [
         ['disable_nacl!=1', {
           'dependencies': [
             'nacl',
           ],
         }],
         ['enable_plugins==1', {
@@ skipping 67 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }