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

gm/shaderbounds.cpp

Index: gm/shaderbounds.cpp
diff --git a/gm/shaderbounds.cpp b/gm/shaderbounds.cpp
index 6820fc63594dbac652d7dd114c4cd9021ed3b52a..e6fcc4ef4b159ec527d29bf6f7b210e13bcbc16e 100644
--- a/gm/shaderbounds.cpp
+++ b/gm/shaderbounds.cpp
@@ -34,7 +34,7 @@ public:
     }
 
 protected:
-    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+    uint32_t onGetFlags() const SK_OVERRIDE {
         return kSkipTiled_Flag;
     }
 
@@ -42,9 +42,9 @@ protected:
         return fName;
     }
 
-    virtual SkISize onISize() SK_OVERRIDE { return SkISize::Make(320, 240); }
+    SkISize onISize() SK_OVERRIDE { return SkISize::Make(320, 240); }
 
-    virtual SkMatrix onGetInitialTransform() const SK_OVERRIDE {
+    SkMatrix onGetInitialTransform() const SK_OVERRIDE {
         SkMatrix result;
         SkScalar scale = 0.8f;
         result.setScale(scale, scale);
@@ -52,7 +52,7 @@ protected:
         return result;
     }
 
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(SkCanvas* canvas) SK_OVERRIDE {
         // The PDF device has already clipped to the content area, but we
         // do it again here so that the raster and pdf results are consistent.
         canvas->clipRect(SkRect::MakeWH(SkIntToScalar(320),