Remove DialogDelegate::Accept() variant

ui/views/window/dialog_delegate.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 "ui/views/window/dialog_delegate.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "build/build_config.h"
@@ skipping 84 matching lines @@
 }
 
 View* DialogDelegate::CreateFootnoteView() {
   return NULL;
 }
 
 bool DialogDelegate::Cancel() {
   return true;
 }
 
-bool DialogDelegate::Accept(bool window_closing) {
-  return Accept();
-}
-
 bool DialogDelegate::Accept() {
   return true;
 }
 
 bool DialogDelegate::Close() {
   int buttons = GetDialogButtons();
   if ((buttons & ui::DIALOG_BUTTON_CANCEL) ||
       (buttons == ui::DIALOG_BUTTON_NONE)) {
     return Cancel();
   }
-  return Accept(true);
+  return Accept();
 }
 
 base::string16 DialogDelegate::GetDialogTitle() const {
   return GetWindowTitle();
 }
 
 int DialogDelegate::GetDialogButtons() const {
   return ui::DIALOG_BUTTON_OK | ui::DIALOG_BUTTON_CANCEL;
 }
 
@@ skipping 124 matching lines @@
   state->role = ui::AX_ROLE_DIALOG;
 }
 
 void DialogDelegateView::ViewHierarchyChanged(
     const ViewHierarchyChangedDetails& details) {
   if (details.is_add && details.child == this && GetWidget())
     NotifyAccessibilityEvent(ui::AX_EVENT_ALERT, true);
 }
 
 }  // namespace views