Effectively revert r50648 (code review URL http://codereview.chromium.org/2849018/show), except a minor change to sha1_portable.cc.
Effectively revert r50648 (code review URL
http://codereview.chromium.org/2849018/show), except a minor
change to sha1_portable.cc.

Don't use sha1_win.cc because it may have caused a regression
to page cycler moz.

TBR=eroman
BUG=47218
TEST=none
Review URL: http://codereview.chromium.org/2865021

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@50900 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser