Introduce GrColorSpaceXform, for gamut conversion on textures

src/gpu/effects/GrTextureDomain.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTextureDomainEffect_DEFINED
 #define GrTextureDomainEffect_DEFINED
 
@@ skipping 149 matching lines @@
     typedef GrSingleTextureEffect INHERITED;
 };
 
 /**
  * A basic texture effect that uses GrTextureDomain.
  */
 class GrTextureDomainEffect : public GrSingleTextureEffect {
 
 public:
     static sk_sp<GrFragmentProcessor> Make(GrTexture*,
+                                           sk_sp<GrColorSpaceXform>,
                                            const SkMatrix&,
                                            const SkRect& domain,
                                            GrTextureDomain::Mode,
                                            GrTextureParams::FilterMode filterMode,
                                            GrCoordSet = kLocal_GrCoordSet);
 
     virtual ~GrTextureDomainEffect();
 
     const char* name() const override { return "TextureDomain"; }
 
     SkString dumpInfo() const override {
         SkString str;
         str.appendf("Domain: [L: %.2f, T: %.2f, R: %.2f, B: %.2f] ",
                     fTextureDomain.domain().fLeft, fTextureDomain.domain().fTop,
                     fTextureDomain.domain().fRight, fTextureDomain.domain().fBottom);
         str.append(INHERITED::dumpInfo());
         return str;
     }
 
     const GrTextureDomain& textureDomain() const { return fTextureDomain; }
 
 protected:
     GrTextureDomain fTextureDomain;
 
 private:
     GrTextureDomainEffect(GrTexture*,
+                          sk_sp<GrColorSpaceXform>,
                           const SkMatrix&,
                           const SkRect& domain,
                           GrTextureDomain::Mode,
                           GrTextureParams::FilterMode,
                           GrCoordSet);
 
     GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
 
     void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override;
 
     bool onIsEqual(const GrFragmentProcessor&) const override;
 
     void onComputeInvariantOutput(GrInvariantOutput* inout) const override;
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     typedef GrSingleTextureEffect INHERITED;
 };
 
 #endif