Some tests around surface creation and snapshotting with color space

gm/textblobgeometrychange.cpp

Index: gm/textblobgeometrychange.cpp
diff --git a/gm/textblobgeometrychange.cpp b/gm/textblobgeometrychange.cpp
index 1b7bff319d4bad46595631eb00ea352fbd2ebd7d..5e3f0d15e65dd57769e18bf8bfd83446b67f59b2 100644
--- a/gm/textblobgeometrychange.cpp
+++ b/gm/textblobgeometrychange.cpp
@@ -42,8 +42,7 @@ protected:
 
         SkAutoTUnref<const SkTextBlob> blob(builder.build());
 
-        SkImageInfo info = SkImageInfo::MakeN32(200, 200, kPremul_SkAlphaType,
-                                                sk_ref_sp(canvas->imageInfo().colorSpace()));
+        SkImageInfo info = SkImageInfo::MakeN32Premul(200, 200);
         SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
         auto surface = canvas->makeSurface(info, &props);
         if (!surface) {