Switch to standard integer types in tools/.

tools/ipc_fuzzer/message_tools/message_list.cc

Index: tools/ipc_fuzzer/message_tools/message_list.cc
diff --git a/tools/ipc_fuzzer/message_tools/message_list.cc b/tools/ipc_fuzzer/message_tools/message_list.cc
index d23ac29173efdef5cba1dd2e7b55be89004de6f8..ac3a598f1126419fef6874792d5702e38396199e 100644
--- a/tools/ipc_fuzzer/message_tools/message_list.cc
+++ b/tools/ipc_fuzzer/message_tools/message_list.cc
@@ -2,12 +2,14 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <stddef.h>
+
 #include <algorithm>
 #include <iostream>
 #include <string>
 #include <vector>
 
-#include "base/basictypes.h"
+#include "build/build_config.h"
 
 // Include once to get the type definitions
 #include "tools/ipc_fuzzer/message_lib/all_messages.h"