Cleanup: Another round of override fixes.

gm/imageblur2.cpp

Index: gm/imageblur2.cpp
diff --git a/gm/imageblur2.cpp b/gm/imageblur2.cpp
index b7c9f9d9c80158a2e78ca081ea47051bb965c096..629d384048797d35101695b99e84a43699811df8 100644
--- a/gm/imageblur2.cpp
+++ b/gm/imageblur2.cpp
@@ -40,15 +40,15 @@ protected:
         return kSkipTiled_Flag;
     }
 
-    virtual SkString onShortName() {
+    virtual SkString onShortName() SK_OVERRIDE {
         return fName;
     }
 
-    virtual SkISize onISize() {
+    virtual SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(WIDTH, HEIGHT);
     }
 
-    virtual void onDraw(SkCanvas* canvas) {
+    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         const int sigmaCount = SK_ARRAY_COUNT(kBlurSigmas);
         const int testStringCount = SK_ARRAY_COUNT(kTestStrings);
         SkScalar dx = WIDTH / sigmaCount;