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

gm/patch.cpp

Index: gm/patch.cpp
diff --git a/gm/patch.cpp b/gm/patch.cpp
index 2579993b8224299c33199814581822e7b17bfc94..3a09ad86203ff2baaf6528f17fdf940efa944c00 100644
--- a/gm/patch.cpp
+++ b/gm/patch.cpp
@@ -76,19 +76,19 @@ public:
     }
 
 protected:
-    virtual SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() SK_OVERRIDE {
         return SkString("patch_primitive");
     }
 
-    virtual SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(800, 800);
     }
 
-    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+    uint32_t onGetFlags() const SK_OVERRIDE {
         return kSkipTiled_Flag;
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
 
         SkPaint paint;