DM: excercise other SkPDF raster dpis

Change-Id: Ia50661a8391da526d509adbe2d7203866c140b1c
Reviewed-on: https://skia-review.googlesource.com/25321
Reviewed-by: Mike Klein <mtklein@chromium.org>
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
diff --git a/dm/DMSrcSink.cpp b/dm/DMSrcSink.cpp
index a299369..6876254 100644
--- a/dm/DMSrcSink.cpp
+++ b/dm/DMSrcSink.cpp
@@ -1393,8 +1393,7 @@
     metadata.fTitle = src.name();
     metadata.fSubject = "rendering correctness test";
     metadata.fCreator = "Skia/DM";
-    sk_sp<SkDocument> doc = SkDocument::MakePDF(dst, SK_ScalarDefaultRasterDPI,
-                                                metadata, nullptr, fPDFA);
+    sk_sp<SkDocument> doc = SkDocument::MakePDF(dst, fRasterDpi, metadata, nullptr, fPDFA);
     if (!doc) {
         return "SkDocument::MakePDF() returned nullptr";
     }