move setshader to sk_sp

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 "SkAnnotationKeys.h"
@@ skipping 1965 matching lines @@
     NOT_IMPLEMENTED(paint.getColorFilter() != nullptr, false);
 
     entry->fMatrix = matrix;
     entry->fClipStack = clipStack;
     entry->fClipRegion = clipRegion;
     entry->fColor = SkColorSetA(paint.getColor(), 0xFF);
     entry->fShaderIndex = -1;
 
     // PDF treats a shader as a color, so we only set one or the other.
     sk_sp<SkPDFObject> pdfShader;
-    const SkShader* shader = paint.getShader();
+    SkShader* shader = paint.getShader();
     SkColor color = paint.getColor();
     if (shader) {
         // PDF positions patterns relative to the initial transform, so
         // we need to apply the current transform to the shader parameters.
         SkMatrix transform = matrix;
         transform.postConcat(fInitialTransform);
 
         // PDF doesn't support kClamp_TileMode, so we simulate it by making
         // a pattern the size of the current clip.
         SkIRect bounds = clipRegion.getBounds();
 
         // We need to apply the initial transform to bounds in order to get
         // bounds in a consistent coordinate system.
         SkRect boundsTemp;
         boundsTemp.set(bounds);
         fInitialTransform.mapRect(&boundsTemp);
         boundsTemp.roundOut(&bounds);
 
         SkScalar rasterScale =
                 SkIntToScalar(fRasterDpi) / DPI_FOR_RASTER_SCALE_ONE;
         pdfShader.reset(SkPDFShader::GetPDFShader(
-                fDocument, fRasterDpi, *shader, transform, bounds, rasterScale));
+                fDocument, fRasterDpi, shader, transform, bounds, rasterScale));
 
         if (pdfShader.get()) {
             // pdfShader has been canonicalized so we can directly compare
             // pointers.
             int resourceIndex = fShaderResources.find(pdfShader.get());
             if (resourceIndex < 0) {
                 resourceIndex = fShaderResources.count();
                 fShaderResources.push(pdfShader.get());
                 pdfShader.get()->ref();
             }
@@ skipping 251 matching lines @@
         sk_sp<SkData> encodedImage(image->refEncodedData());
         if (!encodedImage) {
             fDocument->serialize(pdfimage);
         }
         #endif
         fDocument->canon()->addPDFBitmap(image->uniqueID(), pdfimage.get());
     }
     SkPDFUtils::DrawFormXObject(this->addXObjectResource(pdfimage.get()),
                                 &content.entry()->fContent);
 }