1 files changed, 6 insertions, 0 deletions
diff --git a/tests/PDFPrimitivesTest.cpp b/tests/PDFPrimitivesTest.cpp
index d25adea16f..b9f8a05a80 100644
--- a/tests/PDFPrimitivesTest.cpp
+++ b/tests/PDFPrimitivesTest.cpp
@@ -357,6 +357,7 @@ public:
         return sk_sp<DummyImageFilter>(new DummyImageFilter(visited));
     }
 
+    void toString(SkString* str) const override;
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(DummyImageFilter)
     bool visited() const { return fVisited; }
 
@@ -385,6 +386,11 @@ sk_sp<SkFlattenable> DummyImageFilter::CreateProc(SkReadBuffer& buffer) {
     return DummyImageFilter::Make(visited);
 }
 
+void DummyImageFilter::toString(SkString* str) const {
+    str->appendf("DummyImageFilter: (");
+    str->append(")");
+}
+
 };
 
 // Check that PDF rendering of image filters successfully falls back to