Merge \\\\\"DO NOT MERGE libutils/Unicode.cpp: Correct length computation and add checks for utf16->utf8\\\\\" into lmp-dev am: 8d2d6cedbb  -s ours am: 71da8e7537 am: 5e03ed1dab am: b00e3603ef  -s ours
am: 72bad95df5

Change-Id: I157121792e7de52ae705afc105ebf31299612b59