Backed out 5 changesets (bug 854169) for Android crashes.

Backed out changeset 8898b6c66941 (bug 854169)
Backed out changeset 12cebd8b5669 (bug 854169)
Backed out changeset 844860e32631 (bug 854169)
Backed out changeset 4ede802f8dbb (bug 854169)
Backed out changeset ccae8b3f0a7d (bug 854169)