Bug 1056173 - Fix handling of auto focus errors, restoring of flash/focus. r=justindarc
Bug 1056173 - Fix minor nits found by gaia-linter.
Merge pull request #23390 from aosmond/bug1056173-3

Bug 1056173 -  [B2G][Camera][Gaia] Handle auto focus error callbacks, restore flash/focus modes correctly. r=justindarc