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

gm/strokefill.cpp

Index: gm/strokefill.cpp
diff --git a/gm/strokefill.cpp b/gm/strokefill.cpp
index 4a29100e626d2dc01089522b51ee191211513707..836fedae7bd538880c9f619610a83abd734c66aa 100644
--- a/gm/strokefill.cpp
+++ b/gm/strokefill.cpp
@@ -19,15 +19,15 @@ public:
     }
 
 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("stroke-fill");
     }
 
-    virtual SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(640, 480);
     }
 
@@ -39,7 +39,7 @@ protected:
         canvas->drawText(text, len, x, y + SkIntToScalar(120), p);
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         SkScalar x = SkIntToScalar(100);
         SkScalar y = SkIntToScalar(88);