Bug 969761: use device pixels when chosing camera preview size
Skip test_cards_view_with_three_apps.py due to it failing intermittently on device.
http://qa-selenium.mv.mozilla.com:8080/job/b2g.hamachi.mozilla-b2g28_v1.3.adhoc/6/Skip
Merge pull request #16172 from chirarobert/v1.3_skip_cards_view_test

Skip test_cards_view_with_three_apps.py due to it failing intermittently...
Merge pull request #16152 from davidflanagan/bug969761

Bug 969761: use device pixels when chosing camera preview size r=justindarc
Revert "Merge pull request #16127 from changm/bug968478"

This reverts commit 88bda206b1def5d4beac3be851c904414563bea3.
Revert "Merge pull request #16126 from changm/bug968311"

This reverts commit 32b7cf41d72e8d636fa84e768f2821407316b299.