Revert[2] of "add backdrop option to SaveLayerRec"

tests/RecordOptsTest.cpp

Index: tests/RecordOptsTest.cpp
diff --git a/tests/RecordOptsTest.cpp b/tests/RecordOptsTest.cpp
index dd6c410ed4d52723de40419ffa50caa0ba157442..a7c3ccd73297b7bae1a1b1de74848f6dbbe04367 100644
--- a/tests/RecordOptsTest.cpp
+++ b/tests/RecordOptsTest.cpp
@@ -114,6 +114,7 @@ static void assert_savelayer_restore(skiatest::Reporter* r,
     }
 }
 
+#include "SkBlurImageFilter.h"
 DEF_TEST(RecordOpts_NoopSaveLayerDrawRestore, r) {
     SkRecord record;
     SkRecorder recorder(&record, W, H);
@@ -171,6 +172,13 @@ DEF_TEST(RecordOpts_NoopSaveLayerDrawRestore, r) {
     const SkRecords::DrawRect* drawRect = assert_type<SkRecords::DrawRect>(r, record, 16);
     REPORTER_ASSERT(r, drawRect != nullptr);
     REPORTER_ASSERT(r, drawRect->paint.getColor() == 0x03020202);
+
+    // saveLayer w/ backdrop should NOT go away
+    SkAutoTUnref<SkImageFilter> filter(SkBlurImageFilter::Create(3, 3));
+    recorder.saveLayer({ nullptr, nullptr, filter, 0});
+        recorder.drawRect(draw, opaqueDrawPaint);
+    recorder.restore();
+    assert_savelayer_restore(r, &record, 18, false);
 }
 
 static void assert_merge_svg_opacity_and_filter_layers(skiatest::Reporter* r,