2010-11-08 Dirk Pranke <dpranke@chromium.org>

2010-11-08  Dirk Pranke <dpranke@chromium.org>

        Reviewed by Eric Seidel.

        Fix the webkit_base_dir logic in webkitpy/layout_tests/port/config.py.
        It turns out that NRWT can't use the code in scm.find_checkout_root()
        because the Chromium bots don't do full checkouts of the WebKit
        tree; they only check out subdirectories like WebKitTools/Scripts.
        Until we can figure out a better approach for this, I've
        restored the base_dir-detecting code from NRWT, which works in
        any directory tree, scm or no.

        This also restores the files modified in r71475 and r71474.

        https://bugs.webkit.org/show_bug.cgi?id=49151

        * WebKitTools/Scripts/webkitpy/layout_tests/port/config.py
        * WebKitTools/Scripts/webkitpy/layout_tests/port/config_unittest.py

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@71580 268f45cc-cd09-0410-ab3c-d52691b4dbfc