This CL is a follow up to https://codereview.chromium.org/416683002/.

net/socket/ssl_session_cache_openssl.cc

 // Copyright 2013 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.
 
 #include "net/socket/ssl_session_cache_openssl.h"
 
 #include <list>
 #include <map>
 
 #include <openssl/rand.h>
 #include <openssl/ssl.h>
 
-#include "base/callback.h"
 #include "base/containers/hash_tables.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/synchronization/lock.h"
 
 namespace net {
 
 namespace {
 
 // A helper class to lazily create a new EX_DATA index to map SSL_CTX handles
@@ skipping 497 matching lines @@
   return impl_->SSLSessionIsInCache(cache_key);
 }
 
 void SSLSessionCacheOpenSSL::MarkSSLSessionAsGood(SSL* ssl) {
   return impl_->MarkSSLSessionAsGood(ssl);
 }
 
 void SSLSessionCacheOpenSSL::Flush() { impl_->Flush(); }
 
 }  // namespace net