diff --git a/src/gpu/ops/GrAAConvexPathRenderer.cpp b/src/gpu/ops/GrAAConvexPathRenderer.cpp
index 4447f31577..1cd00f35d6 100644
--- a/src/gpu/ops/GrAAConvexPathRenderer.cpp
+++ b/src/gpu/ops/GrAAConvexPathRenderer.cpp
@@ -725,12 +725,8 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.appendf("Count: %d\n", fPaths.count());
-        string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
-        return string;
+    SkString onDumpInfo() const override {
+        return SkStringPrintf("Count: %d\n%s", fPaths.count(), fHelper.dumpInfo().c_str());
     }
 #endif
 
diff --git a/src/gpu/ops/GrAAHairLinePathRenderer.cpp b/src/gpu/ops/GrAAHairLinePathRenderer.cpp
index 138eacd10a..9fa3710eb1 100644
--- a/src/gpu/ops/GrAAHairLinePathRenderer.cpp
+++ b/src/gpu/ops/GrAAHairLinePathRenderer.cpp
@@ -857,13 +857,10 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.appendf("Color: 0x%08x Coverage: 0x%02x, Count: %d\n", fColor.toBytes_RGBA(),
-                       fCoverage, fPaths.count());
-        string += INHERITED::dumpInfo();
-        string += fHelper.dumpInfo();
-        return string;
+    SkString onDumpInfo() const override {
+        return SkStringPrintf("Color: 0x%08x Coverage: 0x%02x, Count: %d\n%s",
+                              fColor.toBytes_RGBA(), fCoverage, fPaths.count(),
+                              fHelper.dumpInfo().c_str());
     }
 #endif
 
diff --git a/src/gpu/ops/GrAALinearizingConvexPathRenderer.cpp b/src/gpu/ops/GrAALinearizingConvexPathRenderer.cpp
index 7a3738ccfc..6f0acbaf26 100644
--- a/src/gpu/ops/GrAALinearizingConvexPathRenderer.cpp
+++ b/src/gpu/ops/GrAALinearizingConvexPathRenderer.cpp
@@ -187,7 +187,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (const auto& path : fPaths) {
             string.appendf(
@@ -197,7 +197,6 @@ public:
                     path.fMiterLimit);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
diff --git a/src/gpu/ops/GrAtlasTextOp.cpp b/src/gpu/ops/GrAtlasTextOp.cpp
index a0265c8b39..4054121785 100644
--- a/src/gpu/ops/GrAtlasTextOp.cpp
+++ b/src/gpu/ops/GrAtlasTextOp.cpp
@@ -93,7 +93,7 @@ void GrAtlasTextOp::visitProxies(const VisitProxyFunc& func) const {
 }
 
 #if GR_TEST_UTILS
-SkString GrAtlasTextOp::dumpInfo() const {
+SkString GrAtlasTextOp::onDumpInfo() const {
     SkString str;
 
     for (int i = 0; i < fGeoCount; ++i) {
@@ -105,7 +105,6 @@ SkString GrAtlasTextOp::dumpInfo() const {
     }
 
     str += fProcessors.dumpProcessors();
-    str += INHERITED::dumpInfo();
     return str;
 }
 #endif
diff --git a/src/gpu/ops/GrAtlasTextOp.h b/src/gpu/ops/GrAtlasTextOp.h
index f174af50d6..4fc7182810 100644
--- a/src/gpu/ops/GrAtlasTextOp.h
+++ b/src/gpu/ops/GrAtlasTextOp.h
@@ -44,7 +44,7 @@ public:
     void visitProxies(const VisitProxyFunc& func) const override;
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override;
+    SkString onDumpInfo() const override;
 #endif
 
     FixedFunctionFlags fixedFunctionFlags() const override;
diff --git a/src/gpu/ops/GrClearOp.h b/src/gpu/ops/GrClearOp.h
index bec4d899bb..7c8da2a8d4 100644
--- a/src/gpu/ops/GrClearOp.h
+++ b/src/gpu/ops/GrClearOp.h
@@ -31,10 +31,8 @@ public:
     const char* name() const override { return "Clear"; }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.append(INHERITED::dumpInfo());
-        string.appendf("Scissor [ ");
+    SkString onDumpInfo() const override {
+        SkString string("Scissor [ ");
         if (fScissor.enabled()) {
             const SkIRect& r = fScissor.rect();
             string.appendf("L: %d, T: %d, R: %d, B: %d", r.fLeft, r.fTop, r.fRight, r.fBottom);
diff --git a/src/gpu/ops/GrDashOp.cpp b/src/gpu/ops/GrDashOp.cpp
index 52e531999a..11416d3eca 100644
--- a/src/gpu/ops/GrDashOp.cpp
+++ b/src/gpu/ops/GrDashOp.cpp
@@ -245,7 +245,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (const auto& geo : fLines) {
             string.appendf("Pt0: [%.2f, %.2f], Pt1: [%.2f, %.2f], Width: %.2f, Ival0: %.2f, "
@@ -258,7 +258,6 @@ public:
                            geo.fPhase);
         }
         string += fProcessorSet.dumpProcessors();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
diff --git a/src/gpu/ops/GrDefaultPathRenderer.cpp b/src/gpu/ops/GrDefaultPathRenderer.cpp
index 84e32dde8c..fe87ebae64 100644
--- a/src/gpu/ops/GrDefaultPathRenderer.cpp
+++ b/src/gpu/ops/GrDefaultPathRenderer.cpp
@@ -370,14 +370,13 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.appendf("Color: 0x%08x Count: %d\n", fColor.toBytes_RGBA(), fPaths.count());
+    SkString onDumpInfo() const override {
+        SkString string = SkStringPrintf("Color: 0x%08x Count: %d\n",
+                                         fColor.toBytes_RGBA(), fPaths.count());
         for (const auto& path : fPaths) {
             string.appendf("Tolerance: %.2f\n", path.fTolerance);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
diff --git a/src/gpu/ops/GrDrawAtlasOp.cpp b/src/gpu/ops/GrDrawAtlasOp.cpp
index 92a5a922b8..c918d8c387 100644
--- a/src/gpu/ops/GrDrawAtlasOp.cpp
+++ b/src/gpu/ops/GrDrawAtlasOp.cpp
@@ -45,7 +45,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override;
+    SkString onDumpInfo() const override;
 #endif
 
     FixedFunctionFlags fixedFunctionFlags() const override;
@@ -187,14 +187,13 @@ DrawAtlasOp::DrawAtlasOp(const Helper::MakeArgs& helperArgs, const SkPMColor4f&
 }
 
 #if GR_TEST_UTILS
-SkString DrawAtlasOp::dumpInfo() const {
+SkString DrawAtlasOp::onDumpInfo() const {
     SkString string;
     for (const auto& geo : fGeoData) {
         string.appendf("Color: 0x%08x, Quads: %d\n", geo.fColor.toBytes_RGBA(),
                        geo.fVerts.count() / 4);
     }
     string += fHelper.dumpInfo();
-    string += INHERITED::dumpInfo();
     return string;
 }
 #endif
diff --git a/src/gpu/ops/GrDrawPathOp.cpp b/src/gpu/ops/GrDrawPathOp.cpp
index e026f4444a..ca1b37b479 100644
--- a/src/gpu/ops/GrDrawPathOp.cpp
+++ b/src/gpu/ops/GrDrawPathOp.cpp
@@ -38,11 +38,8 @@ GrDrawPathOpBase::GrDrawPathOpBase(uint32_t classID, const SkMatrix& viewMatrix,
         , fProcessorSet(std::move(paint)) {}
 
 #if GR_TEST_UTILS
-SkString GrDrawPathOp::dumpInfo() const {
-    SkString string;
-    string.printf("PATH: 0x%p", fPath.get());
-    string.append(INHERITED::dumpInfo());
-    return string;
+SkString GrDrawPathOp::onDumpInfo() const {
+    return SkStringPrintf("PATH: 0x%p", fPath.get());
 }
 #endif
 
diff --git a/src/gpu/ops/GrDrawPathOp.h b/src/gpu/ops/GrDrawPathOp.h
index 069b19b41d..38936b8470 100644
--- a/src/gpu/ops/GrDrawPathOp.h
+++ b/src/gpu/ops/GrDrawPathOp.h
@@ -81,7 +81,7 @@ public:
     const char* name() const override { return "DrawPath"; }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override;
+    SkString onDumpInfo() const override;
 #endif
 
 private:
diff --git a/src/gpu/ops/GrDrawVerticesOp.cpp b/src/gpu/ops/GrDrawVerticesOp.cpp
index 24fe8233c8..eda6a60f8c 100644
--- a/src/gpu/ops/GrDrawVerticesOp.cpp
+++ b/src/gpu/ops/GrDrawVerticesOp.cpp
@@ -456,7 +456,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override;
+    SkString onDumpInfo() const override;
 #endif
 
     FixedFunctionFlags fixedFunctionFlags() const override;
@@ -582,13 +582,10 @@ DrawVerticesOp::DrawVerticesOp(const Helper::MakeArgs& helperArgs,
 }
 
 #if GR_TEST_UTILS
-SkString DrawVerticesOp::dumpInfo() const {
-    SkString string;
-    string.appendf("PrimType: %d, MeshCount %d, VCount: %d, ICount: %d\n", (int)fPrimitiveType,
-                   fMeshes.count(), fVertexCount, fIndexCount);
-    string += fHelper.dumpInfo();
-    string += INHERITED::dumpInfo();
-    return string;
+SkString DrawVerticesOp::onDumpInfo() const {
+    return SkStringPrintf("PrimType: %d, MeshCount %d, VCount: %d, ICount: %d\n%s",
+                          (int)fPrimitiveType, fMeshes.count(), fVertexCount, fIndexCount,
+                          fHelper.dumpInfo().c_str());
 }
 #endif
 
diff --git a/src/gpu/ops/GrDrawableOp.h b/src/gpu/ops/GrDrawableOp.h
index 3c0c874f6d..646e6475cc 100644
--- a/src/gpu/ops/GrDrawableOp.h
+++ b/src/gpu/ops/GrDrawableOp.h
@@ -26,12 +26,6 @@ public:
 
     const char* name() const override { return "Drawable"; }
 
-#if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        return INHERITED::dumpInfo();
-    }
-#endif
-
 private:
     friend class GrOpMemoryPool; // for ctor
 
diff --git a/src/gpu/ops/GrFillRectOp.cpp b/src/gpu/ops/GrFillRectOp.cpp
index 28322f5abc..d46df4559e 100644
--- a/src/gpu/ops/GrFillRectOp.cpp
+++ b/src/gpu/ops/GrFillRectOp.cpp
@@ -121,9 +121,8 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString str;
-        str.appendf("# draws: %u\n", fQuads.count());
+    SkString onDumpInfo() const override {
+        SkString str = SkStringPrintf("# draws: %u\n", fQuads.count());
         str.appendf("Device quad type: %u, local quad type: %u\n",
                     (uint32_t) fQuads.deviceQuadType(), (uint32_t) fQuads.localQuadType());
         str += fHelper.dumpInfo();
@@ -135,7 +134,6 @@ public:
                                   info.fColor, info.fAAFlags);
             i++;
         }
-        str += INHERITED::dumpInfo();
         return str;
     }
 #endif
diff --git a/src/gpu/ops/GrLatticeOp.cpp b/src/gpu/ops/GrLatticeOp.cpp
index 59cf2c090c..f09d6228ec 100644
--- a/src/gpu/ops/GrLatticeOp.cpp
+++ b/src/gpu/ops/GrLatticeOp.cpp
@@ -174,7 +174,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString str;
 
         for (int i = 0; i < fPatches.count(); ++i) {
@@ -184,7 +184,6 @@ public:
         }
 
         str += fHelper.dumpInfo();
-        str += INHERITED::dumpInfo();
         return str;
     }
 #endif
diff --git a/src/gpu/ops/GrOp.h b/src/gpu/ops/GrOp.h
index 35c4f8c4d5..fac22aef29 100644
--- a/src/gpu/ops/GrOp.h
+++ b/src/gpu/ops/GrOp.h
@@ -181,11 +181,11 @@ public:
 
     /** Used for spewing information about ops when debugging. */
 #if GR_TEST_UTILS
-    virtual SkString dumpInfo() const {
-        SkString string;
-        string.appendf("OpBounds: [L: %.2f, T: %.2f, R: %.2f, B: %.2f]\n",
-                       fBounds.fLeft, fBounds.fTop, fBounds.fRight, fBounds.fBottom);
-        return string;
+    virtual SkString onDumpInfo() const { return SkString(); }
+    virtual SkString dumpInfo() const final {
+        return SkStringPrintf("%s\nOpBounds: [L: %.2f, T: %.2f, R: %.2f, B: %.2f]",
+                              this->onDumpInfo().c_str(), fBounds.fLeft, fBounds.fTop,
+                              fBounds.fRight, fBounds.fBottom);
     }
 #endif
 
diff --git a/src/gpu/ops/GrOvalOpFactory.cpp b/src/gpu/ops/GrOvalOpFactory.cpp
index 537aa823ce..7d382e817d 100644
--- a/src/gpu/ops/GrOvalOpFactory.cpp
+++ b/src/gpu/ops/GrOvalOpFactory.cpp
@@ -1227,7 +1227,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (int i = 0; i < fCircles.count(); ++i) {
             string.appendf(
@@ -1239,7 +1239,6 @@ public:
                     fCircles[i].fOuterRadius);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
@@ -1589,7 +1588,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (int i = 0; i < fCircles.count(); ++i) {
             string.appendf(
@@ -1603,7 +1602,6 @@ public:
                     fCircles[i].fPhaseAngle);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
@@ -1920,9 +1918,8 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.appendf("Stroked: %d\n", fStroked);
+    SkString onDumpInfo() const override {
+        SkString string = SkStringPrintf("Stroked: %d\n", fStroked);
         for (const auto& geo : fEllipses) {
             string.appendf(
                     "Color: 0x%08x Rect [L: %.2f, T: %.2f, R: %.2f, B: %.2f], "
@@ -1932,7 +1929,6 @@ public:
                     geo.fInnerXRadius, geo.fInnerYRadius);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
@@ -2197,7 +2193,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (const auto& geo : fEllipses) {
             string.appendf(
@@ -2209,7 +2205,6 @@ public:
                     geo.fInnerXRadius, geo.fInnerYRadius, geo.fGeoDx, geo.fGeoDy);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
@@ -2547,7 +2542,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (int i = 0; i < fRRects.count(); ++i) {
             string.appendf(
@@ -2559,7 +2554,6 @@ public:
                     fRRects[i].fOuterRadius);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
@@ -2919,9 +2913,8 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.appendf("Stroked: %d\n", fStroked);
+    SkString onDumpInfo() const override {
+        SkString string = SkStringPrintf("Stroked: %d\n", fStroked);
         for (const auto& geo : fRRects) {
             string.appendf(
                     "Color: 0x%08x Rect [L: %.2f, T: %.2f, R: %.2f, B: %.2f], "
@@ -2931,7 +2924,6 @@ public:
                     geo.fInnerXRadius, geo.fInnerYRadius);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
diff --git a/src/gpu/ops/GrRegionOp.cpp b/src/gpu/ops/GrRegionOp.cpp
index 8d6676237f..6a3818a9dc 100644
--- a/src/gpu/ops/GrRegionOp.cpp
+++ b/src/gpu/ops/GrRegionOp.cpp
@@ -73,16 +73,14 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString str;
-        str.appendf("# combined: %d\n", fRegions.count());
+    SkString onDumpInfo() const override {
+        SkString str = SkStringPrintf("# combined: %d\n", fRegions.count());
         for (int i = 0; i < fRegions.count(); ++i) {
             const RegionInfo& info = fRegions[i];
             str.appendf("%d: Color: 0x%08x, Region with %d rects\n", i, info.fColor.toBytes_RGBA(),
                         info.fRegion.computeRegionComplexity());
         }
         str += fHelper.dumpInfo();
-        str += INHERITED::dumpInfo();
         return str;
     }
 #endif
diff --git a/src/gpu/ops/GrShadowRRectOp.cpp b/src/gpu/ops/GrShadowRRectOp.cpp
index 02370936b5..fd1e31532f 100644
--- a/src/gpu/ops/GrShadowRRectOp.cpp
+++ b/src/gpu/ops/GrShadowRRectOp.cpp
@@ -240,7 +240,7 @@ public:
     const char* name() const override { return "ShadowCircularRRectOp"; }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (int i = 0; i < fGeoData.count(); ++i) {
             string.appendf(
@@ -251,7 +251,6 @@ public:
                     fGeoData[i].fOuterRadius, fGeoData[i].fUmbraInset,
                     fGeoData[i].fInnerRadius, fGeoData[i].fBlurRadius);
         }
-        string.append(INHERITED::dumpInfo());
         return string;
     }
 #endif
diff --git a/src/gpu/ops/GrSmallPathRenderer.cpp b/src/gpu/ops/GrSmallPathRenderer.cpp
index cdbc5b44ea..5762eb72e0 100644
--- a/src/gpu/ops/GrSmallPathRenderer.cpp
+++ b/src/gpu/ops/GrSmallPathRenderer.cpp
@@ -137,13 +137,12 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (const auto& geo : fShapes) {
             string.appendf("Color: 0x%08x\n", geo.fColor.toBytes_RGBA());
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
diff --git a/src/gpu/ops/GrStencilPathOp.h b/src/gpu/ops/GrStencilPathOp.h
index 33cebd352b..073c0220c5 100644
--- a/src/gpu/ops/GrStencilPathOp.h
+++ b/src/gpu/ops/GrStencilPathOp.h
@@ -31,11 +31,8 @@ public:
     const char* name() const override { return "StencilPathOp"; }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.printf("Path: 0x%p, AA: %d", fPath.get(), fUseHWAA);
-        string.append(INHERITED::dumpInfo());
-        return string;
+    SkString onDumpInfo() const override {
+        return SkStringPrintf("Path: 0x%p, AA: %d", fPath.get(), fUseHWAA);
     }
 #endif
 
diff --git a/src/gpu/ops/GrStrokeRectOp.cpp b/src/gpu/ops/GrStrokeRectOp.cpp
index 28d5a9b6b7..1a42e0ff5b 100644
--- a/src/gpu/ops/GrStrokeRectOp.cpp
+++ b/src/gpu/ops/GrStrokeRectOp.cpp
@@ -100,16 +100,11 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.appendf(
-                "Color: 0x%08x, Rect [L: %.2f, T: %.2f, R: %.2f, B: %.2f], "
-                "StrokeWidth: %.2f\n",
-                fColor.toBytes_RGBA(), fRect.fLeft, fRect.fTop, fRect.fRight, fRect.fBottom,
-                fStrokeWidth);
-        string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
-        return string;
+    SkString onDumpInfo() const override {
+        return SkStringPrintf("Color: 0x%08x, Rect [L: %.2f, T: %.2f, R: %.2f, B: %.2f], "
+                              "StrokeWidth: %.2f\n%s",
+                              fColor.toBytes_RGBA(), fRect.fLeft, fRect.fTop, fRect.fRight,
+                              fRect.fBottom, fStrokeWidth, fHelper.dumpInfo().c_str());
     }
 #endif
 
@@ -429,7 +424,7 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
+    SkString onDumpInfo() const override {
         SkString string;
         for (const auto& info : fRects) {
             string.appendf(
@@ -443,7 +438,6 @@ public:
                     info.fDevInside.fRight, info.fDevInside.fBottom, info.fDegenerate);
         }
         string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
         return string;
     }
 #endif
diff --git a/src/gpu/ops/GrTextureOp.cpp b/src/gpu/ops/GrTextureOp.cpp
index 982f898586..59f34abfa7 100644
--- a/src/gpu/ops/GrTextureOp.cpp
+++ b/src/gpu/ops/GrTextureOp.cpp
@@ -277,9 +277,8 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString str;
-        str.appendf("# draws: %d\n", fQuads.count());
+    SkString onDumpInfo() const override {
+        SkString str = SkStringPrintf("# draws: %d\n", fQuads.count());
         auto iter = fQuads.iterator();
         for (unsigned p = 0; p < fMetadata.fProxyCount; ++p) {
             str.appendf("Proxy ID: %d, Filter: %d, MM: %d\n",
@@ -305,7 +304,6 @@ public:
                 i++;
             }
         }
-        str += INHERITED::dumpInfo();
         return str;
     }
 #endif
diff --git a/src/gpu/ops/GrTriangulatingPathRenderer.cpp b/src/gpu/ops/GrTriangulatingPathRenderer.cpp
index 15baa4543d..f0a2a451c6 100644
--- a/src/gpu/ops/GrTriangulatingPathRenderer.cpp
+++ b/src/gpu/ops/GrTriangulatingPathRenderer.cpp
@@ -191,12 +191,9 @@ public:
     }
 
 #if GR_TEST_UTILS
-    SkString dumpInfo() const override {
-        SkString string;
-        string.appendf("Color 0x%08x, aa: %d\n", fColor.toBytes_RGBA(), fAntiAlias);
-        string += fHelper.dumpInfo();
-        string += INHERITED::dumpInfo();
-        return string;
+    SkString onDumpInfo() const override {
+        return SkStringPrintf("Color 0x%08x, aa: %d\n%s",
+                              fColor.toBytes_RGBA(), fAntiAlias, fHelper.dumpInfo().c_str());
     }
 #endif