Switch to standard integer types in base/.

base/base64.cc

 // Copyright (c) 2012 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 "base/base64.h"
 
+#include <stddef.h>
+
 #include "third_party/modp_b64/modp_b64.h"
 
 namespace base {
 
 void Base64Encode(const StringPiece& input, std::string* output) {
   std::string temp;
   temp.resize(modp_b64_encode_len(input.size()));  // makes room for null byte
 
   // modp_b64_encode_len() returns at least 1, so temp[0] is safe to use.
   size_t output_size = modp_b64_encode(&(temp[0]), input.data(), input.size());
@@ skipping 11 matching lines @@
   size_t output_size = modp_b64_decode(&(temp[0]), input.data(), input_size);
   if (output_size == MODP_B64_ERROR)
     return false;
 
   temp.resize(output_size);
   output->swap(temp);
   return true;
 }
 
 }  // namespace base