am f73bd14a: Merge "ADT/Layoutlib: implement Canvas.concat(Matrix)" into eclair

Merge commit 'f73bd14a8d5932b34a0e6e4d2de78b74705276b8' into eclair-plus-aosp

* commit 'f73bd14a8d5932b34a0e6e4d2de78b74705276b8':
  ADT/Layoutlib: implement Canvas.concat(Matrix)