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

gm/poly2poly.cpp

Index: gm/poly2poly.cpp
diff --git a/gm/poly2poly.cpp b/gm/poly2poly.cpp
index 191bb0eaea3e8b84437a7e1a812dd60e40d2d448..728650e21041f192a218b7bf14bcbcf482964413 100644
--- a/gm/poly2poly.cpp
+++ b/gm/poly2poly.cpp
@@ -179,15 +179,15 @@ public:
     Poly2PolyGM() {}
 
 protected:
-    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+    uint32_t onGetFlags() const SK_OVERRIDE {
         return kSkipTiled_Flag;
     }
 
-    virtual SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() SK_OVERRIDE {
         return SkString("poly2poly");
     }
 
-    virtual SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(835, 840);
     }
 
@@ -225,7 +225,7 @@ protected:
         canvas->restore();
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         if (false) { test_stroke(canvas); return; }
 
         SkPaint paint;