Don't wait to close tabs waiting for JavaScript dialogs.

content/browser/frame_host/render_frame_host_delegate.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 38 matching lines @@
 struct TransitionLayerData;
 
 // An interface implemented by an object interested in knowing about the state
 // of the RenderFrameHost.
 class CONTENT_EXPORT RenderFrameHostDelegate {
  public:
   // This is used to give the delegate a chance to filter IPC messages.
   virtual bool OnMessageReceived(RenderFrameHost* render_frame_host,
                                  const IPC::Message& message);
 
-  // Allows the delegate to filter incoming associated inteface requests.
+  // Allows the delegate to filter incoming associated interface requests.
   virtual void OnAssociatedInterfaceRequest(
       RenderFrameHost* render_frame_host,
       const std::string& interface_name,
       mojo::ScopedInterfaceEndpointHandle handle) {}
 
   // Gets the last committed URL. See WebContents::GetLastCommittedURL for a
   // description of the semantics.
   virtual const GURL& GetMainFrameLastCommittedURL() const;
 
   // A message was added to to the console.
@@ skipping 18 matching lines @@
                                     const base::string16& message,
                                     const base::string16& default_prompt,
                                     const GURL& frame_url,
                                     JavaScriptMessageType type,
                                     IPC::Message* reply_msg) {}
 
   virtual void RunBeforeUnloadConfirm(RenderFrameHost* render_frame_host,
                                       bool is_reload,
                                       IPC::Message* reply_msg) {}
 
+  virtual bool IsJavaScriptDialogShowing() const;
+
   // Called when a file selection is to be done.
   virtual void RunFileChooser(RenderFrameHost* render_frame_host,
                               const FileChooserParams& params) {}
 
   // Another page accessed the top-level initial empty document, which means it
   // is no longer safe to display a pending URL without risking a URL spoof.
   virtual void DidAccessInitialDocument() {}
 
   // The frame changed its window.name property.
   virtual void DidChangeName(RenderFrameHost* render_frame_host,
@@ skipping 101 matching lines @@
   virtual std::unique_ptr<WebUIImpl> CreateWebUIForRenderFrameHost(
       const GURL& url);
 
  protected:
   virtual ~RenderFrameHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_