WKWebView: Implemented recoverable SSL interstitials.

ios/web/net/crw_cert_policy_cache.h

-// Copyright 2015 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.
-
-#import <Foundation/Foundation.h>
-
-#include "base/ios/block_types.h"
-#include "base/memory/ref_counted.h"
-#include "ios/web/public/cert_policy.h"
-#include "net/cert/cert_status_flags.h"
-
-namespace net {
-class X509Certificate;
-}
-
-namespace web {
-class CertificatePolicyCache;
-}
-
-// Adapter for web::CertificatePolicyCache, which is used to remember decisions
-// about how to handle invalid certs that have been given a user exception.
-// web::CertificatePolicyCache can be used only on IO thread while
-// CRWCertPolicyCache is threadsafe and can be used on any thread.
-@interface CRWCertPolicyCache : NSObject
-
-// Unavailable, use |initWithCache:| instead.
-- (instancetype)init NS_UNAVAILABLE;
-
-// Initializes CRWCertPolicyCache.
-- (instancetype)initWithCache:(scoped_refptr<web::CertificatePolicyCache>)cache
-    NS_DESIGNATED_INITIALIZER;
-
-// Asynchronously queries whether |cert| with |status| is allowed or denied for
-// |host|. |handler| can not be null and is always called on the main thread.
-- (void)queryJudgementForCert:(scoped_refptr<net::X509Certificate>)cert
-                      forHost:(NSString*)host
-                       status:(net::CertStatus)certStatus
-            completionHandler:(void (^)(web::CertPolicy::Judgment))handler;
-
-// Records that |cert| is permitted to be used for |host| in the future.
-- (void)allowCert:(scoped_refptr<net::X509Certificate>)cert
-          forHost:(NSString*)host
-           status:(net::CertStatus)status;
-
-@end