Switch to standard integer types in components/, part 2 of 4.

components/gcm_driver/crypto/p256_key_util.cc

 // 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.
 
 #include "components/gcm_driver/crypto/p256_key_util.h"
 
+#include <stddef.h>
 #include <stdint.h>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "crypto/ec_private_key.h"
 
 namespace gcm {
 
 namespace {
@@ skipping 62 matching lines @@
 
   // Concatenate the leading 0x04 byte and the two uncompressed points.
   out_public_key->reserve(kUncompressedPointBytes);
   out_public_key->push_back(kUncompressedPointForm);
   out_public_key->append(candidate_public_key);
 
   return true;
 }
 
 }  // namespace gcm