Fix up sun_path_len so that it is consistent across all our platforms.
Fix up sun_path_len so that it is consistent across all our platforms.

BUG=none
TEST=build

Review URL: http://codereview.chromium.org/5587006

git-svn-id: http://src.chromium.org/svn/trunk/src@68625 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 89a3237ca72da39b86643f04b5d6ff4842563278
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser