Adding color space to SkSpecialImage

src/core/SkSpecialImage.h

Index: src/core/SkSpecialImage.h
diff --git a/src/core/SkSpecialImage.h b/src/core/SkSpecialImage.h
index 9afd64fa4539a9a578350a9f1a749b335e79f1f6..3c298828017aab916feb3fd2d1bb01fb95d79fcc 100644
--- a/src/core/SkSpecialImage.h
+++ b/src/core/SkSpecialImage.h
@@ -50,6 +50,7 @@ public:
     int width() const { return fSubset.width(); }
     int height() const { return fSubset.height(); }
     const SkIRect& subset() const { return fSubset; }
+    SkColorSpace* getColorSpace() const;
 
     uint32_t uniqueID() const { return fUniqueID; }
     virtual bool isOpaque() const { return false; }
@@ -77,6 +78,7 @@ public:
     static sk_sp<SkSpecialImage> MakeFromGpu(const SkIRect& subset,
                                              uint32_t uniqueID,
                                              sk_sp<GrTexture>,
+                                             sk_sp<SkColorSpace>,
                                              const SkSurfaceProps* = nullptr,
                                              SkAlphaType at = kPremul_SkAlphaType);
 #endif