Create SkColorSpaceXform to handle color conversions

dm/DMSrcSink.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef DMSrcSink_DEFINED
 #define DMSrcSink_DEFINED
 
@@ skipping 194 matching lines @@
         // Mimic legacy behavior and apply no color correction.
         kBaseline_Mode,
 
         // Color correct images into a specific dst color space.  If you happen to have this
         // monitor, you're in luck!  The unmarked outputs of this test should display
         // correctly on this monitor in the Chrome browser.  If not, it's useful to know
         // that this monitor has a profile that is fairly similar to Adobe RGB.
         // TODO (msarett): Should we add a new test with a new monitor and verify that outputs
         //                 look identical on two different dsts?
         kDst_HPZR30w_Mode,
+
+        // Use QCMS for color correction.
+        kQCMS_HPZR30w_Mode,
     };
 
-    ColorCodecSrc(Path, Mode, sk_sp<SkColorSpace>);
+    ColorCodecSrc(Path, Mode);
 
     Error draw(SkCanvas*) const override;
     SkISize size() const override;
     Name name() const override;
     bool veto(SinkFlags) const override;
 private:
     Path                    fPath;
     Mode                    fMode;
-    sk_sp<SkColorSpace>     fDstSpace;
 };
 
 class SKPSrc : public Src {
 public:
     explicit SKPSrc(Path path);
 
     Error draw(SkCanvas*) const override;
     SkISize size() const override;
     Name name() const override;
 private:
@@ skipping 155 matching lines @@
 
 class ViaMojo : public Via {
 public:
     explicit ViaMojo(Sink* sink) : Via(sink) {}
     Error draw(const Src&, SkBitmap*, SkWStream*, SkString*) const override;
 };
 
 }  // namespace DM
 
 #endif//DMSrcSink_DEFINED