SkColorSpace follow-ups

src/core/SkColorSpacePriv.h

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkColorSpacePriv_DEFINED
 #define SkColorSpacePriv_DEFINED
 
@@ skipping 34 matching lines @@
         , fTable(nullptr)
     {}
 };
 
 struct SkGammas : public SkRefCnt {
 public:
     bool isValues() const {
         return fRed.isValue() && fGreen.isValue() && fBlue.isValue();
     }
 
-    SkGammaCurve fRed;
-    SkGammaCurve fGreen;
-    SkGammaCurve fBlue;
+    const SkGammaCurve fRed;
+    const SkGammaCurve fGreen;
+    const SkGammaCurve fBlue;
 
     SkGammas(float red, float green, float blue)
         : fRed(red)
         , fGreen(green)
         , fBlue(blue)
     {}
 
+    SkGammas(SkGammaCurve red, SkGammaCurve green, SkGammaCurve blue)
+        : fRed(std::move(red))
+        , fGreen(std::move(green))
+        , fBlue(std::move(blue))
+    {}
+
     SkGammas() {}
 
     friend class SkColorSpace;
 };
 
 struct SkColorLookUpTable {
     static const uint8_t kMaxChannels = 16;
 
     uint8_t                  fInputChannels;
     uint8_t                  fOutputChannels;
     uint8_t                  fGridPoints[kMaxChannels];
     std::unique_ptr<float[]> fTable;
 
     SkColorLookUpTable() {
         memset(this, 0, sizeof(struct SkColorLookUpTable));
     }
 };
 
 #endif