Switch to standard integer types in ppapi/.

ppapi/tests/test_media_stream_audio_track.cc

 // Copyright 2014 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.
 //
 // Tests PPB_MediaStreamAudioTrack interface.
 
 #include "ppapi/tests/test_media_stream_audio_track.h"
 
 // For MSVC.
 #define _USE_MATH_DEFINES
 #include <math.h>
+#include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
 
 #include "ppapi/c/private/ppb_testing_private.h"
 #include "ppapi/cpp/audio_buffer.h"
 #include "ppapi/cpp/completion_callback.h"
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/var.h"
 #include "ppapi/tests/test_utils.h"
@@ skipping 442 matching lines @@
       expected = INT16_MAX * sin(angle);
       ASSERT_GE(right, std::max<int16_t>(expected, INT16_MIN + 1) - 1);
       ASSERT_LE(right, std::min<int16_t>(expected, INT16_MAX - 1) + 1);
     }
 
     audio_track_.RecycleBuffer(buffer);
   }
 
   PASS();
 }