WidgetDelegateView is its own contents view.

chrome/browser/chromeos/login/ui/simple_web_view_dialog.cc

 // Copyright 2014 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/chromeos/login/ui/simple_web_view_dialog.h"
 
 #include "ash/common/shell_window_ids.h"
 #include "ash/shell.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 230 matching lines @@
   bounds.Inset(kExternalMargin, kExternalMargin);
   layout->set_minimum_size(bounds.size());
 
   Layout();
 }
 
 void SimpleWebViewDialog::Layout() {
   views::WidgetDelegateView::Layout();
 }
 
-views::View* SimpleWebViewDialog::GetContentsView() {
-  return this;
-}
-
 views::View* SimpleWebViewDialog::GetInitiallyFocusedView() {
   return web_view_;
 }
 
 void SimpleWebViewDialog::ButtonPressed(views::Button* sender,
                                         const ui::Event& event) {
   command_updater_->ExecuteCommand(sender->tag());
 }
 
 content::WebContents* SimpleWebViewDialog::OpenURL(
@@ skipping 122 matching lines @@
 
 void SimpleWebViewDialog::UpdateReload(bool is_loading, bool force) {
   if (reload_) {
     reload_->ChangeMode(
         is_loading ? ReloadButton::MODE_STOP : ReloadButton::MODE_RELOAD,
         force);
   }
 }
 
 }  // namespace chromeos