Revert "makeSurface defaults to raster"

This reverts commit 29a4a684af2525d78a1090fba2d3dea2b6a59fc7.

Reason for revert: some configs fail

Original change's description:
> makeSurface defaults to raster
> 
> Rather that returning nullptr for a recording
> canvas, return a raster canvas instead.
> 
> R=​reed@google.com,robertphillips@google.com
> 
> Bug: skia:
> Change-Id: I211d8ef368b9aec6d14cc72d1652ac6a03f3fa7b
> Reviewed-on: https://skia-review.googlesource.com/151666
> Commit-Queue: Cary Clark <caryclark@skia.org>
> Reviewed-by: Robert Phillips <robertphillips@google.com>

TBR=robertphillips@google.com,reed@google.com,caryclark@skia.org

Change-Id: I82d2c3e4589a2ca8523bbf86884ed68b1431631d
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/151824
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Cary Clark <caryclark@google.com>
diff --git a/gm/drawatlas.cpp b/gm/drawatlas.cpp
index 9d28e26..a514138 100644
--- a/gm/drawatlas.cpp
+++ b/gm/drawatlas.cpp
@@ -17,7 +17,7 @@
 class DrawAtlasGM : public skiagm::GM {
     static sk_sp<SkImage> MakeAtlas(SkCanvas* caller, const SkRect& target) {
         SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
-        auto surface(caller->makeSurface(info));
+        auto surface(sk_tool_utils::makeSurface(caller, info));
         SkCanvas* canvas = surface->getCanvas();
         // draw red everywhere, but we don't expect to see it in the draw, testing the notion
         // that drawAtlas draws a subset-region of the atlas.