Add a src rect to drawImageLattice() API

src/core/SkRecorder.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBigPicture.h"
 #include "SkCanvasPriv.h"
 #include "SkImage.h"
@@ skipping 221 matching lines @@
 }
 
 void SkRecorder::onDrawImageNine(const SkImage* image, const SkIRect& center,
                                  const SkRect& dst, const SkPaint* paint) {
     APPEND(DrawImageNine, this->copy(paint), sk_ref_sp(image), center, dst);
 }
 
 void SkRecorder::onDrawImageLattice(const SkImage* image, const Lattice& lattice, const SkRect& dst,
                                     const SkPaint* paint) {
     int flagCount = lattice.fFlags ? (lattice.fXCount + 1) * (lattice.fYCount + 1) : 0;
+    SkASSERT(lattice.fBounds);
     APPEND(DrawImageLattice, this->copy(paint), sk_ref_sp(image),
            lattice.fXCount, this->copy(lattice.fXDivs, lattice.fXCount),
            lattice.fYCount, this->copy(lattice.fYDivs, lattice.fYCount),
-           flagCount, this->copy(lattice.fFlags, flagCount), dst);
+           flagCount, this->copy(lattice.fFlags, flagCount), *lattice.fBounds, dst);
 }
 
 void SkRecorder::onDrawText(const void* text, size_t byteLength,
                             SkScalar x, SkScalar y, const SkPaint& paint) {
     APPEND(DrawText,
            paint, this->copy((const char*)text, byteLength), byteLength, x, y);
 }
 
 void SkRecorder::onDrawPosText(const void* text, size_t byteLength,
                                const SkPoint pos[], const SkPaint& paint) {
@@ skipping 165 matching lines @@
 }
 
 void SkRecorder::onClipRegion(const SkRegion& deviceRgn, ClipOp op) {
     INHERITED(onClipRegion, deviceRgn, op);
     APPEND(ClipRegion, this->devBounds(), deviceRgn, op);
 }
 
 sk_sp<SkSurface> SkRecorder::onNewSurface(const SkImageInfo&, const SkSurfaceProps&) {
     return nullptr;
 }