diff --git a/gm/savelayer.cpp b/gm/savelayer.cpp
index 510fc2f1f4..6a01edd4f0 100644
--- a/gm/savelayer.cpp
+++ b/gm/savelayer.cpp
@@ -80,6 +80,8 @@ private:
 
     typedef skiagm::GM INHERITED;
 };
+DEF_GM(return new UnclippedSaveLayerGM(UnclippedSaveLayerGM::Mode::kClipped);)
+DEF_GM(return new UnclippedSaveLayerGM(UnclippedSaveLayerGM::Mode::kUnclipped);)
 
 DEF_SIMPLE_GM(picture_savelayer, canvas, 320, 640) {
     SkPaint paint1, paint2, paint3;
@@ -99,8 +101,23 @@ DEF_SIMPLE_GM(picture_savelayer, canvas, 320, 640) {
     }
 };
 
-//////////////////////////////////////////////////////////////////////////////
+#include "Resources.h"
 
-DEF_GM(return new UnclippedSaveLayerGM(UnclippedSaveLayerGM::Mode::kClipped);)
-DEF_GM(return new UnclippedSaveLayerGM(UnclippedSaveLayerGM::Mode::kUnclipped);)
+// Test kInitWithPrevious_SaveLayerFlag by drawing an image, save a layer with the flag, which
+// should seed the layer with the image (from below). Then we punch a hole in the layer and
+// restore with kPlus mode, which should show the mandrill super-bright on the outside, but
+// normal where we punched the hole.
+DEF_SIMPLE_GM(savelayer_initfromprev, canvas, 256, 256) {
+    canvas->drawImage(GetResourceAsImage("mandrill_256.png"), 0, 0, nullptr);
+
+    SkCanvas::SaveLayerRec rec;
+    SkPaint paint;
+    paint.setBlendMode(SkBlendMode::kPlus);
+    rec.fSaveLayerFlags = SkCanvas::kInitWithPrevious_SaveLayerFlag;
+    rec.fPaint = &paint;
+    canvas->saveLayer(rec);
+    paint.setBlendMode(SkBlendMode::kClear);
+    canvas->drawCircle(128, 128, 96, paint);
+    canvas->restore();
+};
 
diff --git a/include/core/SkCanvas.h b/include/core/SkCanvas.h
index 403120c80a..9e9d98a587 100644
--- a/include/core/SkCanvas.h
+++ b/include/core/SkCanvas.h
@@ -321,6 +321,9 @@ public:
         kIsOpaque_SaveLayerFlag         = 1 << 0,
         kPreserveLCDText_SaveLayerFlag  = 1 << 1,
 
+        /** initialize the new layer with the contents of the previous layer */
+        kInitWithPrevious_SaveLayerFlag = 1 << 2,
+
 #ifdef SK_SUPPORT_LEGACY_CLIPTOLAYERFLAG
         kDontClipToLayer_Legacy_SaveLayerFlag = kDontClipToLayer_PrivateSaveLayerFlag,
 #endif
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 04cead44fb..5c7039fc50 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -1148,7 +1148,9 @@ void SkCanvas::DrawDeviceWithFilter(SkBaseDevice* src, const SkImageFilter* filt
     draw.fClipStack = clipStack;
 
     SkPaint p;
-    p.setImageFilter(filter->makeWithLocalMatrix(ctm));
+    if (filter) {
+        p.setImageFilter(filter->makeWithLocalMatrix(ctm));
+    }
 
     int x = src->getOrigin().x() - dstOrigin.x();
     int y = src->getOrigin().y() - dstOrigin.y();
@@ -1275,7 +1277,7 @@ void SkCanvas::internalSaveLayer(const SaveLayerRec& rec, SaveLayerStrategy stra
     fMCRec->fLayer = layer;
     fMCRec->fTopLayer = layer;    // this field is NOT an owner of layer
 
-    if (rec.fBackdrop) {
+    if ((rec.fSaveLayerFlags & kInitWithPrevious_SaveLayerFlag) || rec.fBackdrop) {
         DrawDeviceWithFilter(priorDevice, rec.fBackdrop, newDevice.get(), { ir.fLeft, ir.fTop },
                              fMCRec->fMatrix, this->getClipStack());
     }