Fix up all the easy virtual ... SK_OVERRIDE cases.

bench/RectBench.cpp

Index: bench/RectBench.cpp
diff --git a/bench/RectBench.cpp b/bench/RectBench.cpp
index c0201dca4bebe64de6e33d412615100459883d65..6228e00a5717395053b28c51088bc73128c80079 100644
--- a/bench/RectBench.cpp
+++ b/bench/RectBench.cpp
@@ -92,14 +92,14 @@ public:
     }
 
 protected:
-    virtual void setupPaint(SkPaint* paint) SK_OVERRIDE {
+    void setupPaint(SkPaint* paint) SK_OVERRIDE {
         this->INHERITED::setupPaint(paint);
         // srcmode is most interesting when we're not opaque
         paint->setAlpha(0x80);
         paint->setXfermode(fMode);
     }
 
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         fName.set(this->INHERITED::onGetName());
         fName.prepend("srcmode_");
         return fName.c_str();