Wire up configurations properly in VisualBench

tools/VisualBench/VisualBench.h

Index: tools/VisualBench/VisualBench.h
diff --git a/tools/VisualBench/VisualBench.h b/tools/VisualBench/VisualBench.h
index 1920a52b2bebb832486e03bb1d7543551703eefc..9d8e4b975c8c2ebfa3f136eed3f9c2565e5e1b52 100644
--- a/tools/VisualBench/VisualBench.h
+++ b/tools/VisualBench/VisualBench.h
@@ -35,6 +35,9 @@ public:
 
     void clear(SkCanvas* canvas, SkColor color, int frames);
 
+    const Configs::Config& currentConfig() const { return fConfigs.current(); }
+    bool nextConfig() { return fConfigs.next(); }
+
 protected:
     SkSurface* createSurface() override;
 
@@ -51,7 +54,7 @@ private:
     void tearDownContext();
     void setupContext();
 
-    // support framework
+    Configs fConfigs;
     SkAutoTDelete<VisualModule> fModule;
     SkAutoTUnref<SkSurface> fSurface;
     SkAutoTUnref<GrContext> fContext;