Cloning this repository:

git clone git://gitorious.org/~mingwandroid/webkit/mingwandroid-webkit.git mingwandroid-webkit
cd mingwandroid-webkit

Add this repository as a remote to an existing local repository:

git remote add mingwandroid-webkit git://gitorious.org/~mingwandroid/webkit/mingwandroid-webkit.git
git fetch mingwandroid-webkit
git checkout -b my-local-tracking-branch mingwandroid-webkit/master_or_other_branch