Don't pretend it was safe to reinterpret cast persistent handles
Don't pretend it was safe to reinterpret cast persistent handles

Because it's not. When setting implicit references, we end up allocating
memory which in turn might move objects, and will make those pointers
explode.

BUG=none
R=vogelheim@chromium.org,haraken@chromium.org

Review URL: https://codereview.chromium.org/1147963002

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@195607 bbb929c8-8fbe-4397-9dbb-9b2b20218538

Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk