fix bugs in exception throwing code in native_fillwindow

when exceptions are thrown, they are not being handled correctly
and the end result is some random errors/exceptions.
also change LOGD to LOGD_IF(cond,...) in keeping with Android
standards

Change-Id: Ie7f5e5e4b071ca6b2a6aa899c678c81f9ccd8e71
2 files changed