SVN revision 151720 breaks the build with system zlib, see:
http://src.chromium.org/viewvc/chrome?view=rev&revision=151720
The issue here is, that r151720 introduces changes directly in zlib, which
aren't upstream and unfortunately there is no more information stating the exact
reasons for this change, as all references to it are not publicly available:
http://crbug.com/139744https://chromiumcodereview.appspot.com/10837057
So for the moment, we're going to add a patch, which applies to v22 and higher,
which essentially reverts r151720, until either more information on the issue is
available or it is resolved upstream.
As someone has already reported the issue, we just need to track the following
issue:
http://crbug.com/143623
Signed-off-by: aszlig <aszlig@redmoonstudios.org>