Switch to standard integer types in ppapi/.

ppapi/thunk/ppb_audio_config_thunk.cc

Index: ppapi/thunk/ppb_audio_config_thunk.cc
diff --git a/ppapi/thunk/ppb_audio_config_thunk.cc b/ppapi/thunk/ppb_audio_config_thunk.cc
index b06affd5c0df66ced7a6e2594933ee98da2c6133..68d09f538ff5e6c0d42000b1f0d41649fc749893 100644
--- a/ppapi/thunk/ppb_audio_config_thunk.cc
+++ b/ppapi/thunk/ppb_audio_config_thunk.cc
@@ -2,11 +2,13 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <stdint.h>
+
 #include "ppapi/shared_impl/ppb_audio_config_shared.h"
-#include "ppapi/thunk/thunk.h"
 #include "ppapi/thunk/enter.h"
 #include "ppapi/thunk/ppb_audio_config_api.h"
 #include "ppapi/thunk/resource_creation_api.h"
+#include "ppapi/thunk/thunk.h"
 
 namespace ppapi {
 namespace thunk {