components: Cleanup class/struct fwd declarations

components/certificate_reporting/error_reporter.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.
 
 #ifndef COMPONENTS_CERTIFICATE_REPORTING_CERTIFICATE_ERROR_REPORTER_H_
 #define COMPONENTS_CERTIFICATE_REPORTING_CERTIFICATE_ERROR_REPORTER_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <set>
 #include <string>
 
 #include "base/macros.h"
 #include "net/url_request/report_sender.h"
 #include "url/gurl.h"
 
 namespace net {
 class URLRequestContext;
-class SSLInfo;
 }
 
 namespace certificate_reporting {
 
 class EncryptedCertLoggerRequest;
 
 // Provides functionality for sending reports about invalid SSL
 // certificate chains to a report collection server.
 class ErrorReporter {
  public:
@@ skipping 49 matching lines @@
 
   const uint8_t* server_public_key_;
   const uint32_t server_public_key_version_;
 
   DISALLOW_COPY_AND_ASSIGN(ErrorReporter);
 };
 
 }  // namespace certificate_reporting
 
 #endif  // COMPONENTS_CERTIFICATE_REPORTING_CERTIFICATE_ERROR_REPORTER_H_