Initialize pointer members to NULL to avoid illegal reference

mBitmap and mTexture is not initialized to NULL which causes
illegal address access when it fails to be created from
oversized bitmap.

Change-Id: Iea54bec8788bc5f3a10040fdb43f416c0d41a14c
SystemUI: Add double tap to sleep gesture

Change-Id: I4c54718e8ec8774677d13917b3a7ffa3b4b18cb5
Signed-off-by: Rohan Mathur <rohanmathur34@gmail.com>
Merge "SystemUI: Add double tap to sleep gesture" into kitkat
Merge "Initialize pointer members to NULL to avoid illegal reference" into kitkat
Merge branch 'kitkat' of https://github.com/AOKP/frameworks_base into kitkat