tree f59b97cf2ccc04521a0a36a1b3f8b71d590d3e2a
parent 899110f3012eb9ab2056d8ee182d5bdab0ecae19
author tiger_huang <tiger_huang@htc.com> 1443679887 +0800
committer tiger_huang <tiger_huang@htc.com> 1443679887 +0800

Make accessing mInputMethodTarget thread-safe

Use the lock to prevent other threads clearing mInputMethodTarget
while we are accessing members of mInputMethodTarget, or it will
cause system server crash due to unexpected NullPointerException.

Change-Id: Iec3bed916a019827364ddaf63a89270a4c407a47