Absolutify paths to rendering/.

BUG=234793
TBR=abarth

Review URL: https://codereview.chromium.org/13947051

git-svn-id: svn://svn.chromium.org/blink/trunk@149065 bbb929c8-8fbe-4397-9dbb-9b2b20218538
Absolutify paths to loader/.

BUG=234793
TBR=abarth

Review URL: https://codereview.chromium.org/14060017

git-svn-id: svn://svn.chromium.org/blink/trunk@149066 bbb929c8-8fbe-4397-9dbb-9b2b20218538