Make SkColorSpaceXform::New() take bare ptrs

src/codec/SkWebpCodec.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCodecPriv.h"
 #include "SkColorSpaceXform.h"
 #include "SkWebpCodec.h"
@@ skipping 181 matching lines @@
 
 SkCodec::Result SkWebpCodec::onGetPixels(const SkImageInfo& dstInfo, void* dst, size_t rowBytes,
                                          const Options& options, SkPMColor*, int*,
                                          int* rowsDecodedPtr) {
     if (!conversion_possible(dstInfo, this->getInfo())) {
         return kInvalidConversion;
     }
 
     std::unique_ptr<SkColorSpaceXform> colorXform = nullptr;
     if (needs_color_xform(dstInfo, this->getInfo())) {
-        colorXform = SkColorSpaceXform::New(sk_ref_sp(this->getInfo().colorSpace()),
-                                            sk_ref_sp(dstInfo.colorSpace()));
+        colorXform = SkColorSpaceXform::New(this->getInfo().colorSpace(), dstInfo.colorSpace());
         SkASSERT(colorXform);
     }
 
     WebPDecoderConfig config;
     if (0 == WebPInitDecoderConfig(&config)) {
         // ABI mismatch.
         // FIXME: New enum for this?
         return kInvalidInput;
     }
 
@@ skipping 109 matching lines @@
     return result;
 }
 
 SkWebpCodec::SkWebpCodec(int width, int height, const SkEncodedInfo& info,
                          sk_sp<SkColorSpace> colorSpace, SkStream* stream, WebPDemuxer* demux,
                          sk_sp<SkData> data)
     : INHERITED(width, height, info, stream, std::move(colorSpace))
     , fDemux(demux)
     , fData(std::move(data))
 {}