Revert "bug #5252975: guard against null bitmap object, don't NPE."

This reverts commit 7012ebe1c85e538c572e23d4cb98cad88699c782.

We would like to know the crash as soon as possible.
bug: 5252975
1 file changed
tree: 359086dcc9b4fb0f5449bcfc9ff52b6ecd013456
  1. gallerycommon/