Make SkColorSpaceXform::New() take bare ptrs

src/codec/SkPngCodec.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 "SkBitmap.h"
 #include "SkCodecPriv.h"
 #include "SkColorPriv.h"
@@ skipping 1093 matching lines @@
         return false;
     }
     png_read_update_info(fPng_ptr, fInfo_ptr);
 
     // Reset fSwizzler and fColorXform.  We can't do this in onRewind() because the
     // interlaced scanline decoder may need to rewind.
     fSwizzler.reset(nullptr);
     fColorXform = nullptr;
 
     if (needs_color_xform(dstInfo, this->getInfo())) {
-        fColorXform = SkColorSpaceXform::New(sk_ref_sp(this->getInfo().colorSpace()),
-                                             sk_ref_sp(dstInfo.colorSpace()));
+        fColorXform = SkColorSpaceXform::New(this->getInfo().colorSpace(), dstInfo.colorSpace());
         SkASSERT(fColorXform);
     }
 
     // If the image is RGBA and we have a color xform, we can skip the swizzler.
     // FIXME (msarett):
     // Support more input types to fColorXform (ex: RGB, Gray) and skip the swizzler more often.
     if (fColorXform && SkEncodedInfo::kRGBA_Color == this->getEncodedInfo().color() &&
         !options.fSubset)
     {
         fXformMode = kColorOnly_XformMode;
@@ skipping 173 matching lines @@
     SkCodec* outCodec = nullptr;
     if (read_header(streamDeleter.get(), chunkReader, &outCodec, nullptr, nullptr)) {
         // Codec has taken ownership of the stream.
         SkASSERT(outCodec);
         streamDeleter.release();
         return outCodec;
     }
 
     return nullptr;
 }