Revert of Safe numeric library: base/numerics (copied from Chromium)

webrtc/base/openssladapter.cc

 /*
  *  Copyright 2008 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 16 matching lines @@
 #include <openssl/x509.h>
 #include <openssl/x509v3.h>
 
 #if HAVE_CONFIG_H
 #include "config.h"
 #endif  // HAVE_CONFIG_H
 
 #include "webrtc/base/arraysize.h"
 #include "webrtc/base/common.h"
 #include "webrtc/base/logging.h"
-#include "webrtc/base/numerics/safe_conversions.h"
 #include "webrtc/base/openssl.h"
+#include "webrtc/base/safe_conversions.h"
 #include "webrtc/base/sslroots.h"
 #include "webrtc/base/stringutils.h"
 #include "webrtc/base/thread.h"
 
 #ifndef OPENSSL_IS_BORINGSSL
 
 // TODO: Use a nicer abstraction for mutex.
 
 #if defined(WEBRTC_WIN)
   #define MUTEX_TYPE HANDLE
@@ skipping 912 matching lines @@
   if (ssl_mode_ == SSL_MODE_DTLS) {
     SSL_CTX_set_read_ahead(ctx, 1);
   }
 
   return ctx;
 }
 
 } // namespace rtc
 
 #endif  // HAVE_OPENSSL_SSL_H