Fix picture shader handling of outer local matrix

Instead of applying local matrices to the cached shader, pass them
explicitly/composed to createContext/appendStages/asFragmentProcessor.


Change-Id: I39aaf07ac883094c447c4e03e2ef9dcf8de13555
Reviewed-on: https://skia-review.googlesource.com/104580
Commit-Queue: Florin Malita <fmalita@chromium.org>
Reviewed-by: Mike Reed <reed@google.com>
3 files changed