SkPDF: SkPDFStream takes a unique_ptr

src/pdf/SkPDFFormXObject.cpp

 /*
  * Copyright 2010 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 "SkPDFFormXObject.h"
 
 #include "SkMatrix.h"
 #include "SkPDFDevice.h"
 #include "SkPDFUtils.h"
 #include "SkStream.h"
 #include "SkTypes.h"
 
 SkPDFFormXObject::SkPDFFormXObject(SkPDFDevice* device) {
     // We don't want to keep around device because we'd have two copies
     // of content, so reference or copy everything we need (content and
     // resources).
     auto resourceDict = device->makeResourceDict();
 
-    auto content = device->content();
-    this->setData(content.get());
+    this->setData(device->content());
 
     sk_sp<SkPDFArray> bboxArray(device->copyMediaBox());
     this->init(nullptr, resourceDict.get(), bboxArray.get());
 
     // We invert the initial transform and apply that to the xobject so that
     // it doesn't get applied twice. We can't just undo it because it's
     // embedded in things like shaders and images.
     if (!device->initialTransform().isIdentity()) {
         SkMatrix inverse;
         if (!device->initialTransform().invert(&inverse)) {
             // The initial transform should be invertible.
             SkASSERT(false);
             inverse.reset();
         }
         this->insertObject("Matrix", SkPDFUtils::MatrixToArray(inverse));
     }
 }
 
 /**
  * Creates a FormXObject from a content stream and associated resources.
  */
-SkPDFFormXObject::SkPDFFormXObject(SkStreamAsset* content, SkRect bbox,
+SkPDFFormXObject::SkPDFFormXObject(std::unique_ptr<SkStreamAsset> content,
+                                   SkRect bbox,
                                    SkPDFDict* resourceDict) {
-    setData(content);
-
+    this->setData(std::move(content));
     sk_sp<SkPDFArray> bboxArray(SkPDFUtils::RectToArray(bbox));
     this->init("DeviceRGB", resourceDict, bboxArray.get());
 }
 
 /**
  * Common initialization code.
  * Note that bbox is unreferenced here, so calling code does not need worry.
  */
 void SkPDFFormXObject::init(const char* colorSpace,
                             SkPDFDict* resourceDict, SkPDFArray* bbox) {
     this->insertName("Type", "XObject");
     this->insertName("Subtype", "Form");
     this->insertObject("Resources", sk_ref_sp(resourceDict));
     this->insertObject("BBox", sk_ref_sp(bbox));
 
     // Right now SkPDFFormXObject is only used for saveLayer, which implies
     // isolated blending.  Do this conditionally if that changes.
     auto group = sk_make_sp<SkPDFDict>("Group");
     group->insertName("S", "Transparency");
 
     if (colorSpace != nullptr) {
         group->insertName("CS", colorSpace);
     }
     group->insertBool("I", true);  // Isolated.
     this->insertObject("Group", std::move(group));
 }
 
 SkPDFFormXObject::~SkPDFFormXObject() {}