Re-implement form validation message UI with native widgets (Views)

chrome/browser/chrome_content_browser_client.cc

 // 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.
 
 #include "chrome/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 709 matching lines @@
   host->GetChannel()->AddFilter(
       new SearchProviderInstallStateMessageFilter(id, profile));
   host->GetChannel()->AddFilter(new SpellCheckMessageFilter(id));
 #if defined(OS_MACOSX)
   host->GetChannel()->AddFilter(new SpellCheckMessageFilterMac(id));
 #endif
   host->GetChannel()->AddFilter(new ChromeNetBenchmarkingMessageFilter(
       id, profile, context));
   host->GetChannel()->AddFilter(
       new prerender::PrerenderMessageFilter(id, profile));
-#if defined(OS_MACOSX)
-  // TODO(tkent): Enable it for other platforms.
   host->GetChannel()->AddFilter(new ValidationMessageMessageFilter(id));
-#endif
 
   host->Send(new ChromeViewMsg_SetIsIncognitoProcess(
       profile->IsOffTheRecord()));
 
   host->Send(new ChromeViewMsg_SetExtensionActivityLogEnabled(
       IsExtensionActivityLogEnabledForProfile(profile)));
 
   SendExtensionWebRequestStatusToHost(host);
 
   RendererContentSettingRules rules;
@@ skipping 1503 matching lines @@
 #if defined(USE_NSS)
 crypto::CryptoModuleBlockingPasswordDelegate*
     ChromeContentBrowserClient::GetCryptoPasswordDelegate(
         const GURL& url) {
   return chrome::NewCryptoModuleBlockingDialogDelegate(
       chrome::kCryptoModulePasswordKeygen, url.host());
 }
 #endif
 
 }  // namespace chrome