Switch to standard integer types in ppapi/.

ppapi/examples/audio/audio.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.
 
 // Needed on Windows to get |M_PI| from math.h.
 #ifdef _WIN32
 #define _USE_MATH_DEFINES
 #endif
 
 #include <math.h>
+#include <stddef.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include <limits>
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/cpp/audio.h"
 #include "ppapi/cpp/audio_config.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/instance.h"
@@ skipping 103 matching lines @@
 };
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new MyModule();
 }
 
 }  // namespace pp