Add patheffects to debugger printout

src/effects/Sk1DPathEffect.cpp

Index: src/effects/Sk1DPathEffect.cpp
diff --git a/src/effects/Sk1DPathEffect.cpp b/src/effects/Sk1DPathEffect.cpp
index 83f684e2ca2bc29b901d1434a2062e37bc16f5ca..3af9887f9c66045b037a7a0da22807955236ae0b 100644
--- a/src/effects/Sk1DPathEffect.cpp
+++ b/src/effects/Sk1DPathEffect.cpp
@@ -196,3 +196,13 @@ SkScalar SkPath1DPathEffect::next(SkPath* dst, SkScalar distance,
     }
     return fAdvance;
 }
+
+
+#ifndef SK_IGNORE_TO_STRING
+void SkPath1DPathEffect::toString(SkString* str) const {
+    str->appendf("SkPath1DPathEffect: (");
+    // TODO: add path and style
+    str->appendf("advance: %.2f phase %.2f", fAdvance, fInitialOffset);
+    str->appendf(")");
+}
+#endif