Switch to standard integer types in gin/.

gin/converter.h

 // 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.
 
 #ifndef GIN_CONVERTER_H_
 #define GIN_CONVERTER_H_
 
+#include <stdint.h>
+
 #include <string>
 #include <vector>
 
 #include "base/logging.h"
 #include "base/strings/string_piece.h"
 #include "gin/gin_export.h"
 #include "v8/include/v8.h"
 
 namespace gin {
 
@@ skipping 243 matching lines @@
 bool ConvertFromV8(v8::Isolate* isolate, v8::Local<v8::Value> input,
                    T* result) {
   return Converter<T>::FromV8(isolate, input, result);
 }
 
 GIN_EXPORT std::string V8ToString(v8::Local<v8::Value> value);
 
 }  // namespace gin
 
 #endif  // GIN_CONVERTER_H_