bug:15860114
Savelayers and HW layers both now support shadow casting.
For save layers, the light source should always be correct, for HW
layers, the light source position is set when the layer is created,
and updated when it is resized.
Change-Id: Ie85567dd43c2bb0a0b08fd0bd4db41efa793ac2b
* Now with more native!
* Less matrix math thanks to bulk-property-update support!
* Zero JNI on the View.damageInParent() path!
* Fully aware of RT-driven animators!
* Likely full of new and exciting bugs!
* But it also fixes at least 1 existing invalidate bug!
Change-Id: Ie0773f85a60850ff2668370c58defef2e8aa079f