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

gm/filterbitmap.cpp

Index: gm/filterbitmap.cpp
diff --git a/gm/filterbitmap.cpp b/gm/filterbitmap.cpp
index b4c5f6ac3093edb74316ce38306f6ebab8efc5db..57041fb62dc16977e0e1900d33acd95d8233c521 100644
--- a/gm/filterbitmap.cpp
+++ b/gm/filterbitmap.cpp
@@ -70,22 +70,22 @@ 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(1024, 768);
     }
 
     virtual void makeBitmap() = 0;
     virtual SkScalar getScale() = 0;
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
 
         canvas->translate(10, 10);
         for (size_t i = 0; i < SK_ARRAY_COUNT(fMatrix); ++i) {