Use WebUI version of SSL cert dialog on ChromeOS.

chrome/browser/ui/webui/ssl_client_certificate_selector_webui.cc

Index: chrome/browser/ui/webui/ssl_client_certificate_selector_webui.cc
diff --git a/chrome/browser/ui/webui/ssl_client_certificate_selector_webui.cc b/chrome/browser/ui/webui/ssl_client_certificate_selector_webui.cc
index 1c66ee7e120fbfd0680eb79cccf53fc98edd3f7d..ad9c3b14018870220e4adfc777bd1c6582d17ae2 100644
--- a/chrome/browser/ui/webui/ssl_client_certificate_selector_webui.cc
+++ b/chrome/browser/ui/webui/ssl_client_certificate_selector_webui.cc
@@ -291,11 +291,14 @@ void ShowSSLClientCertificateSelector(
     TabContentsWrapper* wrapper,
     net::SSLCertRequestInfo* cert_request_info,
     SSLClientAuthHandler* delegate) {
-#if defined(USE_AURA)
+#if defined(USE_AURA) || defined(OS_CHROMEOS)
   SSLClientCertificateSelectorWebUI::ShowDialog(wrapper,
                                                 cert_request_info,
                                                 delegate);
 #else
+  // TODO(rbyers): Remove the IsMoreWebUI check and (ideally) all #ifdefs onnce
+  // we can select exactly one version of this dialog to use for each platform
+  // at build time.  http://crbug.com/102775
   if (ChromeWebUI::IsMoreWebUI())
     SSLClientCertificateSelectorWebUI::ShowDialog(wrapper,
                                                   cert_request_info,