Switch to standard integer types in base/.

BUG=138542
TBR=mark@chromium.org
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1538743002

Cr-Commit-Position: refs/heads/master@{#366910}


CrOS-Libchrome-Original-Commit: 9b6f42934e5a1e65ebfc668d91a28a6e2678a14c
diff --git a/base/json/json_writer.cc b/base/json/json_writer.cc
index 2d3ae0f..19bc0da 100644
--- a/base/json/json_writer.cc
+++ b/base/json/json_writer.cc
@@ -14,6 +14,7 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
+#include "build/build_config.h"
 
 namespace base {