Switch to standard integer types in ppapi/.

ppapi/tests/test_websocket.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 "ppapi/tests/test_websocket.h"
 
+#include <stddef.h>
 #include <stdio.h>
 #include <string.h>
 
 #include <algorithm>
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_completion_callback.h"
@@ skipping 1592 matching lines @@
   size_t last_event = events_on_closed - 1;
   for (uint32_t i = 1; i < last_event; ++i) {
     ASSERT_EQ(WebSocketEvent::EVENT_MESSAGE, events[i].event_type);
     ASSERT_TRUE(AreEqualWithString(events[i].var.pp_var(), message));
   }
   ASSERT_EQ(WebSocketEvent::EVENT_CLOSE, events[last_event].event_type);
   ASSERT_TRUE(events[last_event].was_clean);
 
   PASS();
 }