overlay: enable translucent status/navigation bars on lockscreen

Change-Id: I06452197b8a8a0f0bac6f150efa333e1021e7a6f
workaround bug 10194508

Change-Id: I2ed81542beac204554e16026d3250e734c53892a
enable vectorimpl symbols

Change-Id: Ibf07b7e114e2324a3ec9654e85dc13fb9e5303da