exernalize imagefactory guard

cmake/example.cpp

Index: cmake/example.cpp
diff --git a/cmake/example.cpp b/cmake/example.cpp
index 96bf4d3ff81761446dd8f24bc37f8531bcf7eee5..20259b558928bdf05dde2b53d53c75402193c976 100644
--- a/cmake/example.cpp
+++ b/cmake/example.cpp
@@ -80,7 +80,7 @@ int main(int, char**) {
     canvas->drawText(msg, strlen(msg), 90,120, paint);
 
     // Grab a snapshot of the surface as an immutable SkImage.
-    std::shared_ptr<SkImage> image = adopt(surface->newImageSnapshot());
+    sk_sp<SkImage> image = surface->makeImageSnapshot();
     // Encode that image as a .png into a blob in memory.
     std::shared_ptr<SkData> png = adopt(image->encode(SkImageEncoder::kPNG_Type, 100));