Differentiate between sRGBGamma and 2Dot2Gamma

src/core/SkMipMap.cpp

Index: src/core/SkMipMap.cpp
diff --git a/src/core/SkMipMap.cpp b/src/core/SkMipMap.cpp
index 69c8466f69c30073fe0ace194254ef2215575959..b9302cdb6841bab2fcf3de8b646311dd0f87632f 100644
--- a/src/core/SkMipMap.cpp
+++ b/src/core/SkMipMap.cpp
@@ -306,7 +306,7 @@ size_t SkMipMap::AllocLevelsSize(int levelCount, size_t pixelSize) {
 
 static bool treat_like_srgb(const SkImageInfo& info) {
     if (info.colorSpace()) {
-        return SkColorSpace::k2Dot2Curve_GammaNamed == info.colorSpace()->gammaNamed();
+        return info.colorSpace()->gammaCloseToSRGB();
     } else {
         return kSRGB_SkColorProfileType == info.profileType();
     }