Switch to standard integer types in ppapi/.

ppapi/examples/audio_input/audio_input.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 <stddef.h>
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
 #include "ppapi/cpp/audio_config.h"
 #include "ppapi/cpp/dev/audio_input_dev.h"
 #include "ppapi/cpp/dev/device_ref_dev.h"
@@ skipping 326 matching lines @@
 };
 
 namespace pp {
 
 // Factory function for your specialization of the Module object.
 Module* CreateModule() {
   return new MyModule();
 }
 
 }  // namespace pp