Fix bug 5434403 - invalidation problem with seek bars at edges
Fix bug 5434403 - invalidation problem with seek bars at edges

Explicitly invalidate the seek bar thumb area when we change drawable
states for touch down. This prevents the thumb from only being
half-invalidated at the edges since it extends into the view's padding
region.

Change-Id: Icc4e608aca044b2d05f3a9378eced839c03947e6

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base