Mac: Allow statting various files needed for use by the defaults system.
Mac: Allow statting various files needed for use by the defaults system.

This CL allows statting the following files:
1) '/'
2) '/var'

And full read access for various paths where .GlobalPreferences.plist may be present.

The first 2 seem harmless to unblock and the 3rd is used by the default system.

Bug=60917
TEST=Repro steps in bug.
Cleanup: Remove stale TODO

The code in question is no longer needed since Skia has changed to remove the #define in question.

BUG=None
TEST=Compilation shouldn't break

Review URL: http://codereview.chromium.org/4134007

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@65331 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