Add option to skip rects to drawImageLattice()

src/core/SkPicturePlayback.cpp

Index: src/core/SkPicturePlayback.cpp
diff --git a/src/core/SkPicturePlayback.cpp b/src/core/SkPicturePlayback.cpp
index 3df64227a6de169c19ebc6700a02d2a92fb47662..2b623f6216d9753e1edb5f5784636432c867f71d 100644
--- a/src/core/SkPicturePlayback.cpp
+++ b/src/core/SkPicturePlayback.cpp
@@ -316,6 +316,9 @@ void SkPicturePlayback::handleOp(SkReadBuffer* reader,
             lattice.fXDivs = (const int*) reader->skip(lattice.fXCount * sizeof(int32_t));
             lattice.fYCount = reader->readInt();
             lattice.fYDivs = (const int*) reader->skip(lattice.fYCount * sizeof(int32_t));
+            lattice.fFlagCount = reader->readInt();
+            lattice.fFlags = (0 == lattice.fFlagCount) ? nullptr : (const SkCanvas::Lattice::Flags*)
+                    reader->skip(SkAlign4(lattice.fFlagCount * sizeof(SkCanvas::Lattice::Flags)));
             SkRect dst;
             reader->readRect(&dst);
             canvas->drawImageLattice(image, lattice, dst, paint);