Add a src rect to drawImageLattice() API

src/core/SkDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkColorFilter.h"
 #include "SkDevice.h"
 #include "SkDraw.h"
@@ skipping 201 matching lines @@
 
     SkRect srcR, dstR;
     while (iter.next(&srcR, &dstR)) {
         this->drawBitmapRect(draw, bitmap, &srcR, dstR, paint, SkCanvas::kStrict_SrcRectConstraint);
     }
 }
 
 void SkBaseDevice::drawImageLattice(const SkDraw& draw, const SkImage* image,
                                     const SkCanvas::Lattice& lattice, const SkRect& dst,
                                     const SkPaint& paint) {
-    SkLatticeIter iter(image->width(), image->height(), lattice, dst);
+    SkLatticeIter iter(lattice, dst);
 
     SkRect srcR, dstR;
     while (iter.next(&srcR, &dstR)) {
         this->drawImageRect(draw, image, &srcR, dstR, paint, SkCanvas::kStrict_SrcRectConstraint);
     }
 }
 
 void SkBaseDevice::drawBitmapLattice(const SkDraw& draw, const SkBitmap& bitmap,
                                      const SkCanvas::Lattice& lattice, const SkRect& dst,
                                      const SkPaint& paint) {
-    SkLatticeIter iter(bitmap.width(), bitmap.height(), lattice, dst);
+    SkLatticeIter iter(lattice, dst);
 
     SkRect srcR, dstR;
     while (iter.next(&srcR, &dstR)) {
         this->drawBitmapRect(draw, bitmap, &srcR, dstR, paint, SkCanvas::kStrict_SrcRectConstraint);
     }
 }
 
 void SkBaseDevice::drawAtlas(const SkDraw& draw, const SkImage* atlas, const SkRSXform xform[],
                              const SkRect tex[], const SkColor colors[], int count,
                              SkXfermode::Mode mode, const SkPaint& paint) {
@@ skipping 324 matching lines @@
 
     // Also log filter quality independent scale factor.
     SK_HISTOGRAM_ENUMERATION("DrawScaleFactor.AnyFilterQuality", scaleFactor,
                              kLast_ScaleFactor + 1);
 
     // Also log an overall histogram of filter quality.
     SK_HISTOGRAM_ENUMERATION("FilterQuality", filterQuality, kLast_SkFilterQuality + 1);
 #endif
 }