Allow all mixed content

Only for K releases, to match classic before we can introduce a new
API. When there is a new API we will turn it off by default.

Tracking klp-mr2 fix in bug 13301630 (fix for origianl issue was
tracked in bug 10570054)

Change-Id: Idaf46def48020d22cacb2b55c4205697117e970b
(cherry picked from commit 3e35739886bcb31eef708caed3d7e45aa522b142)
1 file changed