1 files changed, 21 insertions, 0 deletions
diff --git a/src/effects/SkDropShadowImageFilter.cpp b/src/effects/SkDropShadowImageFilter.cpp
index d19c05fe5d..7532894bce 100644
--- a/src/effects/SkDropShadowImageFilter.cpp
+++ b/src/effects/SkDropShadowImageFilter.cpp
@@ -159,3 +159,24 @@ SkIRect SkDropShadowImageFilter::onFilterNodeBounds(const SkIRect& src, const Sk
     return dst;
 }
 
+void SkDropShadowImageFilter::toString(SkString* str) const {
+    str->appendf("SkDropShadowImageFilter: (");
+
+    str->appendf("dX: %f ", fDx);
+    str->appendf("dY: %f ", fDy);
+    str->appendf("sigmaX: %f ", fSigmaX);
+    str->appendf("sigmaY: %f ", fSigmaY);
+
+    str->append("Color: ");
+    str->appendHex(fColor);
+
+    static const char* gModeStrings[] = {
+        "kDrawShadowAndForeground", "kDrawShadowOnly"
+    };
+
+    static_assert(kShadowModeCount == SK_ARRAY_COUNT(gModeStrings), "enum_mismatch");
+
+    str->appendf(" mode: %s", gModeStrings[fShadowMode]);
+
+    str->append(")");
+}