Provide backward compatibility for callback functions in
GuzzleHttpRequest, which was missing in T202110, and restore
GuzzleHttpRequest as the default provided by HttpRequestFactory.
Bug: T212175
Depends-On: I4b45e79d35252d13f714f3271b87301ca515121a
Change-Id: I60d1a034b44874f6d24a04058db264eeb565f5e1
The postBody option to GuzzleHttpRequest can be passed as an array
or as a string. We were previously handling the array case incorrectly.
Bug: T211806
Change-Id: I8f40b9de9d40a9361eb45103608bf3aaa943bf73
Create a GuzzleHttpRequest class using the external Guzzle
(docs.guzzlephp.org) library. This will be the new default request type,
but CurlHttpRequest and PhpHttpRequest remain available and accessible
via Http::$httpEngine.
Bug: T202110
Change-Id: Ie720be2628d7baf427b002847f103fd86ee4cff3
Depends-On: I143a6410d111e75f01dbbfd43f300e2e60247451