Simplify the JavaScriptDialogManager.

components/app_modal/app_modal_dialog.cc

 // Copyright (c) 2011 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 "components/app_modal/app_modal_dialog.h"
 
 #include "base/logging.h"
 #include "base/run_loop.h"
 #include "components/app_modal/app_modal_dialog_queue.h"
 #include "components/app_modal/native_app_modal_dialog.h"
@@ skipping 34 matching lines @@
   native_dialog_ = CreateNativeDialog();
   native_dialog_->ShowAppModalDialog();
   if (app_modal_dialog_observer)
     app_modal_dialog_observer->Notify(this);
 }
 
 bool AppModalDialog::IsValid() {
   return valid_;
 }
 
-void AppModalDialog::Invalidate() {
+void AppModalDialog::Invalidate(bool suppress_callbacks) {
   valid_ = false;
 }
 
 bool AppModalDialog::IsJavaScriptModalDialog() {
   return false;
 }
 
 void AppModalDialog::ActivateModalDialog() {
   DCHECK(native_dialog_);
   native_dialog_->ActivateAppModalDialog();
 }
 
 void AppModalDialog::CloseModalDialog() {
   DCHECK(native_dialog_);
   native_dialog_->CloseAppModalDialog();
 }
 
 void AppModalDialog::CompleteDialog() {
   if (!completed_) {
     completed_ = true;
     AppModalDialogQueue::GetInstance()->ShowNextDialog();
   }
 }
 
 }  // namespace app_modal