Override drawRRect in fake SkBitmapDevices.

src/utils/SkPictureUtils.cpp

Index: src/utils/SkPictureUtils.cpp
diff --git a/src/utils/SkPictureUtils.cpp b/src/utils/SkPictureUtils.cpp
index ce516146544f6260305df71346204de6593cc0bf..ffd9aa4429d24c307693b2b07fe465de8e78f5fb 100644
--- a/src/utils/SkPictureUtils.cpp
+++ b/src/utils/SkPictureUtils.cpp
@@ -46,6 +46,7 @@ static void nothing_to_do() {}
  *  This device will route all bitmaps (primitives and in shaders) to its PRSet.
  *  It should never actually draw anything, so there need not be any pixels
  *  behind its device-bitmap.
+ *  FIXME: Derive from SkBaseDevice.
  */
 class GatherPixelRefDevice : public SkBitmapDevice {
 private:
@@ -93,6 +94,10 @@ public:
                           const SkPaint& paint) SK_OVERRIDE {
         this->addBitmapFromPaint(paint);
     }
+    virtual void drawRRect(const SkDraw&, const SkRRect&,
+                           const SkPaint& paint) SK_OVERRIDE {
+        this->addBitmapFromPaint(paint);
+    }
     virtual void drawOval(const SkDraw&, const SkRect&,
                           const SkPaint& paint) SK_OVERRIDE {
         this->addBitmapFromPaint(paint);