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

gm/blurcircles.cpp

Index: gm/blurcircles.cpp
diff --git a/gm/blurcircles.cpp b/gm/blurcircles.cpp
index 44f4d6d072bcf3d101df9b0747d7b904fb0fbfa6..0e7f916d408f601b17c9aa521b67216deda14073 100644
--- a/gm/blurcircles.cpp
+++ b/gm/blurcircles.cpp
@@ -19,19 +19,19 @@ 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 fName;
     }
 
-    virtual SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(950, 950);
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         canvas->scale(1.5f, 1.5f);
         canvas->translate(50,50);