add src-rect-constraint to drawImageRect

src/pdf/SkPDFDevice.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 "SkPDFDevice.h"
 
 #include "SkAnnotation.h"
@@ skipping 983 matching lines @@
     }
     SkPDFUtils::EmitPath(*pathPtr, paint.getStyle(),
                          &content.entry()->fContent);
     SkPDFUtils::PaintPath(paint.getStyle(), pathPtr->getFillType(),
                           &content.entry()->fContent);
 }
 
 void SkPDFDevice::drawBitmapRect(const SkDraw& draw, const SkBitmap& bitmap,
                                  const SkRect* src, const SkRect& dst,
                                  const SkPaint& srcPaint,
-                                 SkCanvas::DrawBitmapRectFlags flags) {
+                                 SK_VIRTUAL_CONSTRAINT_TYPE) {
     SkPaint paint = srcPaint;
     if (bitmap.isOpaque()) {
         replace_srcmode_on_opaque_paint(&paint);
     }
 
     // TODO: this code path must be updated to respect the flags parameter
     SkMatrix    matrix;
     SkRect      bitmapBounds, tmpSrc, tmpDst;
     SkBitmap    tmpBitmap;
 
@@ skipping 1180 matching lines @@
         return;
     }
     SkAutoTUnref<SkPDFObject> image(SkPDFBitmap::Create(fCanon, subsetBitmap));
     if (!image) {
         return;
     }
 
     SkPDFUtils::DrawFormXObject(this->addXObjectResource(image.get()),
                                 &content.entry()->fContent);
 }