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

tests/ImageDecodingTest.cpp

Index: tests/ImageDecodingTest.cpp
diff --git a/tests/ImageDecodingTest.cpp b/tests/ImageDecodingTest.cpp
index 528c295d93222c72d1408c54a85a397444539f77..78d6b6c35f5e3a4eb915659ccf62af9340ad67a2 100644
--- a/tests/ImageDecodingTest.cpp
+++ b/tests/ImageDecodingTest.cpp
@@ -760,7 +760,7 @@ public:
     SingleAllocator(void* p, size_t s) : fPixels(p), fSize(s) { }
     ~SingleAllocator() {}
     // If the pixels in fPixels are big enough, use them.
-    virtual bool allocPixelRef(SkBitmap* bm, SkColorTable* ct) SK_OVERRIDE {
+    bool allocPixelRef(SkBitmap* bm, SkColorTable* ct) SK_OVERRIDE {
         SkASSERT(bm);
         if (bm->info().getSafeSize(bm->rowBytes()) <= fSize) {
             bm->setPixels(fPixels, ct);