Yields the next name/value pair in the %SoupMessageHeaders being
iterated by iter. If iter has already yielded the last header,
then soup_message_headers_iter_next() will return %FALSE and name
and value will be unchanged.
Initializes iter for iterating hdrs.
a %SoupMessageHeaders
An opaque type used to iterate over a %SoupMessageHeaders structure.
After intializing the iterator with soup_message_headers_iter_init(), call soup_message_headers_iter_next() to fetch data from it.
You may not modify the headers while iterating over them.