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

components/gcm_driver/crypto/gcm_encryption_provider_unittest.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/gcm_encryption_provider.h"
 
+#include <stddef.h>
+
 #include <sstream>
 #include <string>
 
 #include "base/base64url.h"
 #include "base/bind.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_piece.h"
@@ skipping 293 matching lines @@
 
   // Decrypt the message, and expect everything to go wonderfully well.
   ASSERT_NO_FATAL_FAILURE(Decrypt(message));
   ASSERT_EQ(DECRYPTION_SUCCEEDED, decryption_result());
 
   EXPECT_TRUE(decrypted_message().decrypted);
   EXPECT_EQ(kExampleMessage, decrypted_message().raw_data);
 }
 
 }  // namespace gcm