Close web contents modal dialogs on content load start

chrome/browser/ui/views/autofill/autofill_dialog_views.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/ui/views/autofill/autofill_dialog_views.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 1089 matching lines @@
   // care of deleting itself after calling DeleteDelegate().
   WebContentsModalDialogManager* web_contents_modal_dialog_manager =
       WebContentsModalDialogManager::FromWebContents(
           controller_->web_contents());
   window_ = CreateWebContentsModalDialogViews(
       this,
       controller_->web_contents()->GetView()->GetNativeView(),
       web_contents_modal_dialog_manager->delegate()->
           GetWebContentsModalDialogHost());
   web_contents_modal_dialog_manager->ShowDialog(window_->GetNativeView());
+  web_contents_modal_dialog_manager->SetPreventCloseOnLoadStart(
+      window_->GetNativeView(), true);
   focus_manager_ = window_->GetFocusManager();
   focus_manager_->AddFocusChangeListener(this);
 
   // Listen for size changes on the browser.
   views::Widget* browser_widget =
       views::Widget::GetTopLevelWidgetForNativeView(
           controller_->web_contents()->GetView()->GetNativeView());
   observer_.Add(browser_widget);
 
   gfx::Image splash_image = controller_->SplashPageImage();
@@ skipping 1091 matching lines @@
 AutofillDialogViews::DetailsGroup::DetailsGroup(DialogSection section)
     : section(section),
       container(NULL),
       manual_input(NULL),
       suggested_info(NULL),
       suggested_button(NULL) {}
 
 AutofillDialogViews::DetailsGroup::~DetailsGroup() {}
 
 }  // namespace autofill