Remove CRWSessionEntry from CRWSessionCertificatePolicyManager.

ios/web/navigation/crw_session_certificate_policy_manager.h

 // Copyright 2012 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_NAVIGATION_CRW_SESSION_CERTIFICATE_POLICY_MANAGER_H_
 #define IOS_WEB_NAVIGATION_CRW_SESSION_CERTIFICATE_POLICY_MANAGER_H_
 
 #import <Foundation/Foundation.h>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "net/cert/cert_status_flags.h"
 
-@class CRWSessionEntry;
-
 namespace net {
 class X509Certificate;
 }
 
 namespace web {
 class CertificatePolicyCache;
 }
 
 // The CRWSessionCertificatePolicyManager keeps track of the certificates that
 // have been manually allowed by the user despite the errors.
 // The CRWSessionCertificatePolicyManager lives on the main thread.
 @interface CRWSessionCertificatePolicyManager : NSObject <NSCoding, NSCopying>
 
 - (void)registerAllowedCertificate:
             (const scoped_refptr<net::X509Certificate>)certificate
                            forHost:(const std::string&)host
                             status:(net::CertStatus)status;
 
 // Removes all the certificates associated with this session. Note that this has
 // no effect on the policy cache service.
 - (void)clearCertificates;
 
 // Copies the certificate polices for the session into |cache|.
 - (void)updateCertificatePolicyCache:
     (const scoped_refptr<web::CertificatePolicyCache>&)cache;
 
 @end
 
 #endif  // IOS_WEB_NAVIGATION_CRW_SESSION_CERTIFICATE_POLICY_MANAGER_H_