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

gm/imageblur2.cpp

Index: gm/imageblur2.cpp
diff --git a/gm/imageblur2.cpp b/gm/imageblur2.cpp
index 629d384048797d35101695b99e84a43699811df8..aafd01e5b58c31ebaef83a7594202bbd0dd7bb38 100644
--- a/gm/imageblur2.cpp
+++ b/gm/imageblur2.cpp
@@ -36,19 +36,19 @@ 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(WIDTH, HEIGHT);
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         const int sigmaCount = SK_ARRAY_COUNT(kBlurSigmas);
         const int testStringCount = SK_ARRAY_COUNT(kTestStrings);
         SkScalar dx = WIDTH / sigmaCount;