Use bitmap.asImage()

Change-Id: Ie16194937530d7cd75f84d9af66c31b77875ef83
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/347043
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/tools/DDLPromiseImageHelper.cpp b/tools/DDLPromiseImageHelper.cpp
index 09962b5..49c42ee 100644
--- a/tools/DDLPromiseImageHelper.cpp
+++ b/tools/DDLPromiseImageHelper.cpp
@@ -315,7 +315,7 @@
     // texture wouldn't fit on the GPU. Create a separate bitmap-backed image for each thread.
     if (!curImage.isYUV() && !curImage.callbackContext(0)) {
         SkASSERT(curImage.baseLevel().isImmutable());
-        return SkImage::MakeFromBitmap(curImage.baseLevel());
+        return curImage.baseLevel().asImage();
     }
 
     SkASSERT(curImage.index() == *indexPtr);