Revert "Revert of add Make variations to return SkImage by sk_sp (patchset #5 id:80001 of https://codereview.chromium.org/1778393002/ )"

Fix was to call get() instead of release() when passing the sp to a bare-ptr method.

This reverts commit e683c56115a210b5993df9294260bb147b408bfa.

BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1789443002

TBR=

Review URL: https://codereview.chromium.org/1789443002
diff --git a/include/core/SkShader.h b/include/core/SkShader.h
index 0bcb98a..158d526 100644
--- a/include/core/SkShader.h
+++ b/include/core/SkShader.h
@@ -411,7 +411,7 @@
      *              bounds.
      *  @return     Returns a new shader object. Note: this function never returns null.
     */
-    static sk_sp<SkShader> MakePictureShader(sk_sp<const SkPicture> src, TileMode tmx, TileMode tmy,
+    static sk_sp<SkShader> MakePictureShader(sk_sp<SkPicture> src, TileMode tmx, TileMode tmy,
                                              const SkMatrix* localMatrix, const SkRect* tile);
 
     /**