Add SkColorSpaceXform to the public API

src/codec/SkJpegCodec.cpp

Index: src/codec/SkJpegCodec.cpp
diff --git a/src/codec/SkJpegCodec.cpp b/src/codec/SkJpegCodec.cpp
index f6c856ee1d7a7ac95ceaa00dff56ceb13ee0b4f0..92ab2bc1823bbc025bed055e24fbf1cf2618d83b 100644
--- a/src/codec/SkJpegCodec.cpp
+++ b/src/codec/SkJpegCodec.cpp
@@ -517,8 +517,9 @@ int SkJpegCodec::readRows(const SkImageInfo& dstInfo, void* dst, size_t rowBytes
         }
 
         if (fColorXform) {
-            fColorXform->apply(dst, swizzleDst, dstWidth, select_xform_format(dstInfo.colorType()),
-                               SkColorSpaceXform::kRGBA_8888_ColorFormat, kOpaque_SkAlphaType);
+            SkAssertResult(fColorXform->apply(select_xform_format(dstInfo.colorType()), dst,
+                                              SkColorSpaceXform::kRGBA_8888_ColorFormat, swizzleDst,
+                                              dstWidth, kOpaque_SkAlphaType));
             dst = SkTAddOffset<void>(dst, rowBytes);
         }