Some tests around surface creation and snapshotting with color space

gm/surface.cpp

Index: gm/surface.cpp
diff --git a/gm/surface.cpp b/gm/surface.cpp
index 7c0b0c9d9fea997fcb22df40ab2b9563a7454237..6323c7047b81e19b0af5f07c2d7b34040da55aee 100644
--- a/gm/surface.cpp
+++ b/gm/surface.cpp
@@ -65,8 +65,7 @@ protected:
         GrContext* ctx = canvas->getGrContext();
 
         // must be opaque to have a hope of testing LCD text
-        const SkImageInfo info = SkImageInfo::MakeN32(W, H, kOpaque_SkAlphaType,
-                                                      sk_ref_sp(canvas->imageInfo().colorSpace()));
+        const SkImageInfo info = SkImageInfo::MakeN32(W, H, kOpaque_SkAlphaType);
 
         const struct {
             SkPixelGeometry fGeo;