override new virtual onDrawDRRect in util canvas subclasses

src/utils/debugger/SkDebugCanvas.cpp

Index: src/utils/debugger/SkDebugCanvas.cpp
diff --git a/src/utils/debugger/SkDebugCanvas.cpp b/src/utils/debugger/SkDebugCanvas.cpp
index 07cb09f381252b96c7ad229af03ef52995df814c..88088542bc1c98f31f957295379089f218cf77a8 100644
--- a/src/utils/debugger/SkDebugCanvas.cpp
+++ b/src/utils/debugger/SkDebugCanvas.cpp
@@ -401,6 +401,11 @@ void SkDebugCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) {
     addDrawCommand(new SkDrawRRectCommand(rrect, paint));
 }
 
+void SkDebugCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
+                                 const SkPaint& paint) {
+    // TODO: add DRRect to debugger
+}
+
 void SkDebugCanvas::drawSprite(const SkBitmap& bitmap, int left, int top,
                                const SkPaint* paint = NULL) {
     addDrawCommand(new SkDrawSpriteCommand(bitmap, left, top, paint));