Remove BrowserList::GetLastActive usage from WebUI pages.

chrome/browser/ui/gtk/ssl_client_certificate_selector.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/ssl_client_certificate_selector.h"
 
 #include <gtk/gtk.h>
 
 #include <string>
 #include <vector>
@@ skipping 327 matching lines @@
     return;
   gtk_text_buffer_set_text(cert_details_buffer_,
                            details_strings_[selected].c_str(),
                            details_strings_[selected].size());
 }
 
 void SSLClientCertificateSelector::OnViewClicked(GtkWidget* button) {
   net::X509Certificate* cert = GetSelectedCert();
   if (cert) {
     GtkWidget* toplevel = gtk_widget_get_toplevel(root_widget_.get());
-    ShowCertificateViewer(GTK_WINDOW(toplevel), cert);
+    ShowCertificateViewer(
+        tab_contents_->web_contents(), GTK_WINDOW(toplevel), cert);
   }
 }
 
 void SSLClientCertificateSelector::OnCancelClicked(GtkWidget* button) {
   CertificateSelected(NULL);
   DCHECK(window_);
   window_->CloseConstrainedWindow();
 }
 
 void SSLClientCertificateSelector::OnOkClicked(GtkWidget* button) {
@@ skipping 32 matching lines @@
     TabContents* tab_contents,
     const net::HttpNetworkSession* network_session,
     net::SSLCertRequestInfo* cert_request_info,
     const base::Callback<void(net::X509Certificate*)>& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   (new SSLClientCertificateSelector(
       tab_contents, network_session, cert_request_info, callback))->Show();
 }
 
 }  // namespace browser