///
// Return the number of elements in the string map.
///
-CEF_EXPORT int cef_string_map_size(cef_string_map_t map);
+CEF_EXPORT size_t cef_string_map_size(cef_string_map_t map);
///
// Return the value assigned to the specified key.
///
// Return the key at the specified zero-based string map index.
///
-CEF_EXPORT int cef_string_map_key(cef_string_map_t map, int index,
+CEF_EXPORT int cef_string_map_key(cef_string_map_t map, size_t index,
cef_string_t* key);
///
// Return the value at the specified zero-based string map index.
///
-CEF_EXPORT int cef_string_map_value(cef_string_map_t map, int index,
+CEF_EXPORT int cef_string_map_value(cef_string_map_t map, size_t index,
cef_string_t* value);
///