[HWUI]: fix residual line on FrameBuffer

Symptom: If app applies animation to enlarge a bitmap, there will be an residual
         line on the screen

Root Cause: On platform which has Tile Rendering implementation (ex. Qualcomm
            CPU), startTiling() call will restrict the framebuffer region which
            GPU can affect. So the expansion of clear region by 1 will not take
            effect if startTiling region is not expanded.

Solution: Expand the startTiling region by 1, too.

Reproduce steps: Apply animation to enlarge (and then shrink) a bitmap icon.

Change-Id: I7b4a59e180daa29dbe909d9e11f4093ae1d7396f
Prevent Showing the Crash Dialog for System UI

After system ui crashes, the crash dialog can prevent the keyguard from
showing if the screen was shut off before the dialog was dismissed. The
user can't recover from this without waiting for the dialog to time out
which takes several minutes.

Not showing the dialog for system ui is a safe way of preventing this
from occuring.

Change-Id: Iac235f3af244f735ef0e043098ed84874e3a84f9