Switch to standard integer types in components/, part 4 of 4.

components/webcrypto/algorithms/hmac.cc

 // Copyright 2014 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 <openssl/hmac.h>
+#include <stddef.h>
+#include <stdint.h>
 
 #include "base/logging.h"
 #include "base/numerics/safe_math.h"
 #include "components/webcrypto/algorithm_implementation.h"
 #include "components/webcrypto/algorithms/secret_key_util.h"
 #include "components/webcrypto/algorithms/util.h"
 #include "components/webcrypto/blink_key_handle.h"
 #include "components/webcrypto/crypto_data.h"
 #include "components/webcrypto/jwk.h"
 #include "components/webcrypto/status.h"
@@ skipping 268 matching lines @@
   }
 };
 
 }  // namespace
 
 scoped_ptr<AlgorithmImplementation> CreateHmacImplementation() {
   return make_scoped_ptr(new HmacImplementation);
 }
 
 }  // namespace webcrypto