Add an error page for resources blocked via XSS Auditor.

third_party/WebKit/Source/core/html/parser/XSSAuditorDelegate.cpp

 /*
  * Copyright (C) 2013 Google, Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 #include "core/dom/Document.h"
 #include "core/frame/LocalFrame.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "core/loader/DocumentLoader.h"
 #include "core/loader/FrameLoader.h"
 #include "core/loader/FrameLoaderClient.h"
 #include "core/loader/NavigationScheduler.h"
 #include "core/loader/PingLoader.h"
 #include "platform/json/JSONValues.h"
 #include "platform/network/EncodedFormData.h"
+#include "platform/network/ResourceError.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace blink {
 
 String XSSInfo::buildConsoleError() const {
   StringBuilder message;
   message.append("The XSS Auditor ");
   message.append(m_didBlockEntirePage ? "blocked access to"
                                       : "refused to execute a script in");
@@ skipping 71 matching lines @@
 
     frameLoader.client()->didDetectXSS(m_document->url(),
                                        xssInfo.m_didBlockEntirePage);
 
     if (!m_reportURL.isEmpty())
       PingLoader::sendViolationReport(m_document->frame(), m_reportURL,
                                       generateViolationReport(xssInfo),
                                       PingLoader::XSSAuditorViolationReport);
   }
 
-  if (xssInfo.m_didBlockEntirePage)
-    m_document->frame()->navigationScheduler().schedulePageBlock(m_document);
+  if (xssInfo.m_didBlockEntirePage) {
+    m_document->frame()->navigationScheduler().schedulePageBlock(
+        m_document, ResourceError::BLOCKED_BY_XSS_AUDITOR);
+  }
 }
 
 }  // namespace blink