Switch new SkImageFilter internal methods over to sk_sp

src/effects/SkOffsetImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkOffsetImageFilter.h"
 
 #include "SkCanvas.h"
 #include "SkMatrix.h"
 #include "SkPaint.h"
 #include "SkReadBuffer.h"
 #include "SkSpecialImage.h"
 #include "SkSpecialSurface.h"
 #include "SkWriteBuffer.h"
 
-SkSpecialImage* SkOffsetImageFilter::onFilterImage(SkSpecialImage* source,
-                                                   const Context& ctx,
-                                                   SkIPoint* offset) const {
+sk_sp<SkSpecialImage> SkOffsetImageFilter::onFilterImage(SkSpecialImage* source,
+                                                         const Context& ctx,
+                                                         SkIPoint* offset) const {
     SkIPoint srcOffset = SkIPoint::Make(0, 0);
-    SkAutoTUnref<SkSpecialImage> input(this->filterInput(0, source, ctx, &srcOffset));
+    sk_sp<SkSpecialImage> input(this->filterInput(0, source, ctx, &srcOffset));
     if (!input) {
         return nullptr;
     }
 
     SkVector vec;
     ctx.ctm().mapVectors(&vec, &fOffset, 1);
 
     if (!this->cropRectIsSet()) {
         offset->fX = srcOffset.fX + SkScalarRoundToInt(vec.fX);
         offset->fY = srcOffset.fY + SkScalarRoundToInt(vec.fY);
-        return input.release();
+        return input;
     } else {
         SkIRect bounds;
         SkIRect srcBounds = SkIRect::MakeWH(input->width(), input->height());
         srcBounds.offset(srcOffset);
         if (!this->applyCropRect(ctx, srcBounds, &bounds)) {
             return nullptr;
         }
 
         SkImageInfo info = SkImageInfo::MakeN32(bounds.width(), bounds.height(),
                                                 kPremul_SkAlphaType);
@@ skipping 10 matching lines @@
 
         SkPaint paint;
         paint.setXfermodeMode(SkXfermode::kSrc_Mode);
         canvas->translate(SkIntToScalar(srcOffset.fX - bounds.fLeft),
                           SkIntToScalar(srcOffset.fY - bounds.fTop));
 
         input->draw(canvas, vec.x(), vec.y(), &paint);
 
         offset->fX = bounds.fLeft;
         offset->fY = bounds.fTop;
-        return surf->makeImageSnapshot().release();
+        return surf->makeImageSnapshot();
     }
 }
 
 SkRect SkOffsetImageFilter::computeFastBounds(const SkRect& src) const {
     SkRect bounds = this->getInput(0) ? this->getInput(0)->computeFastBounds(src) : src;
     bounds.offset(fOffset.fX, fOffset.fY);
     return bounds;
 }
 
 SkIRect SkOffsetImageFilter::onFilterNodeBounds(const SkIRect& src, const SkMatrix& ctm,
@@ skipping 29 matching lines @@
 void SkOffsetImageFilter::toString(SkString* str) const {
     str->appendf("SkOffsetImageFilter: (");
     str->appendf("offset: (%f, %f) ", fOffset.fX, fOffset.fY);
     str->append("input: (");
     if (this->getInput(0)) {
         this->getInput(0)->toString(str);
     }
     str->append("))");
 }
 #endif