Switch to standard integer types in gin/.

gin/array_buffer.cc

 // Copyright 2013 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 <stdlib.h>
 
 #include "base/logging.h"
 #include "gin/array_buffer.h"
 #include "gin/per_isolate_data.h"
 
 namespace gin {
 
 namespace {
 
@@ skipping 180 matching lines @@
 bool Converter<ArrayBufferView>::FromV8(v8::Isolate* isolate,
                                         v8::Local<v8::Value> val,
                                         ArrayBufferView* out) {
   if (!val->IsArrayBufferView())
     return false;
   *out = ArrayBufferView(isolate, v8::Local<v8::ArrayBufferView>::Cast(val));
   return true;
 }
 
 }  // namespace gin