WKWebView: Implemented recoverable SSL interstitials.

ios/web/web_state/wk_web_view_security_util.h

 // Copyright 2014 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 IOS_WEB_WEB_STATE_WK_WEB_VIEW_SECURITY_UTIL_H_
 #define IOS_WEB_WEB_STATE_WK_WEB_VIEW_SECURITY_UTIL_H_
 
 #import <Foundation/Foundation.h>
 #include <Security/Security.h>
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/memory/ref_counted.h"
 #include "ios/web/public/security_style.h"
 
 namespace net {
 class SSLInfo;
 class X509Certificate;
 }
 
 namespace web {
 
 // NSErrorPeerCertificateChainKey from NSError's userInfo dict.
 extern NSString* const kNSErrorPeerCertificateChainKey;
+// NSErrorFailingURLKey from NSError's userInfo dict.
+extern NSString* const kNSErrorFailingURLKey;
 
 // Creates a certificate from an array of SecCertificateRef objects.
 // Returns null if |certs| is nil or empty.
 scoped_refptr<net::X509Certificate> CreateCertFromChain(NSArray* certs);
 
 // Creates a certificate from a SecTrustRef object.
 // Returns null if trust is null or does not have any certs.
 scoped_refptr<net::X509Certificate> CreateCertFromTrust(SecTrustRef trust);
 
 // Creates server trust object from an array of SecCertificateRef objects.
@@ skipping 13 matching lines @@
 // responsible to ensure that given |error| is an SSL error by calling
 // |web::IsSSLError| function.
 void GetSSLInfoFromWKWebViewSSLError(NSError* error, net::SSLInfo* ssl_info);
 
 // Maps SecTrustResultType value to web::SecurityStyle.
 SecurityStyle GetSecurityStyleFromTrustResult(SecTrustResultType result);
 
 }  // namespace web
 
 #endif // IOS_WEB_WEB_STATE_WK_WEB_VIEW_SECURITY_UTIL_H_