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

gm/filterindiabox.cpp

Index: gm/filterindiabox.cpp
diff --git a/gm/filterindiabox.cpp b/gm/filterindiabox.cpp
index 04e2087bf3d3745b013764d76d1eca524d4f9509..35ccf6e62daa382d86bc3d88df4287a63d702a3a 100644
--- a/gm/filterindiabox.cpp
+++ b/gm/filterindiabox.cpp
@@ -70,22 +70,22 @@ public:
     }
 
 protected:
-    virtual SkString onShortName() SK_OVERRIDE {
+    SkString onShortName() SK_OVERRIDE {
         return fName;
     }
 
 #ifdef SK_CPU_ARM64
     // Skip tiled drawing on 64-bit ARM until https://skbug.com/2908 is fixed.
-    virtual uint32_t onGetFlags() const SK_OVERRIDE {
+    uint32_t onGetFlags() const SK_OVERRIDE {
         return kSkipTiled_Flag;
     }
 #endif
 
-    virtual SkISize onISize() SK_OVERRIDE {
+    SkISize onISize() SK_OVERRIDE {
         return SkISize::Make(1024, 768);
     }
 
-    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) {
             SkSize size = computeSize(fBM, fMatrix[i]);