winhttp: Always clear last error on success.

[Hans Leidekker]

---
 dlls/winhttp/request.c            |   9 +++
 dlls/winhttp/session.c            |  29 ++++++++-
 dlls/winhttp/tests/notification.c |  47 +++++++++++---
 dlls/winhttp/tests/url.c          |   9 ++-
 dlls/winhttp/tests/winhttp.c      | 131 ++++++++++++++++++++++++++++++++------
 dlls/winhttp/url.c                |   2 +
 6 files changed, 194 insertions(+), 33 deletions(-)

-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-winhttp-Always-clear-last-error-on-success.txt
Type: text/x-patch
Size: 28136 bytes
Desc: not available
URL: <http://www.winehq.org/pipermail/wine-patches/attachments/20150803/b4ab2a2c/attachment-0001.bin>