Fix bugs with renderer-side debug URLs, like chrome://crash or javascript:.

content/browser/frame_host/debug_urls.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_DEBUG_URLS_H_
 #define CONTENT_BROWSER_FRAME_HOST_DEBUG_URLS_H_
 
 #include "content/public/common/page_transition_types.h"
 
 class GURL;
 
 namespace content {
 
 // Checks if the given url is a url used for debugging purposes, and if so
 // handles it and returns true.
 bool HandleDebugURL(const GURL& url, PageTransition transition);
 
+// Returns whether the given url is either a renderer-side debugging url, such
+// as one that crashes or hangs the renderer, or a JavaScript URL that operates
+// on the current page in the renderer.  Such URLs do not represent actual
+// navigations and can be loaded in any SiteInstance.
+bool IsRendererDebugURL(const GURL& url);
+
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_DEBUG_URLS_H_