Add a src rect to drawImageLattice() API

src/core/SkPictureRecord.cpp

Index: src/core/SkPictureRecord.cpp
diff --git a/src/core/SkPictureRecord.cpp b/src/core/SkPictureRecord.cpp
index 4cba3b067f2d2e1bd1d72853480785399ffdc60e..6325edae00e7fa0ba3ab7104612ae9af2f517591 100644
--- a/src/core/SkPictureRecord.cpp
+++ b/src/core/SkPictureRecord.cpp
@@ -540,7 +540,7 @@ void SkPictureRecord::onDrawImageLattice(const SkImage* image, const Lattice& la
     // xCount + xDivs + yCount+ yDivs
     int flagCount = (nullptr == lattice.fFlags) ? 0 : (lattice.fXCount + 1) * (lattice.fYCount + 1);
     size_t latticeSize = (1 + lattice.fXCount + 1 + lattice.fYCount + 1) * kUInt32Size +
-                         SkAlign4(flagCount * sizeof(SkCanvas::Lattice::Flags));
+                         SkAlign4(flagCount * sizeof(SkCanvas::Lattice::Flags)) + sizeof(SkIRect);
 
     // op + paint index + image index + lattice + dst rect
     size_t size = 3 * kUInt32Size + latticeSize + sizeof(dst);
@@ -553,6 +553,8 @@ void SkPictureRecord::onDrawImageLattice(const SkImage* image, const Lattice& la
     fWriter.writePad(lattice.fYDivs, lattice.fYCount * kUInt32Size);
     this->addInt(flagCount);
     fWriter.writePad(lattice.fFlags, flagCount * sizeof(SkCanvas::Lattice::Flags));
+    SkASSERT(lattice.fBounds);
+    this->addIRect(*lattice.fBounds);
     this->addRect(dst);
     this->validate(initialOffset, size);
 }