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

src/ports/SkTypeface_win_dw.cpp

Index: src/ports/SkTypeface_win_dw.cpp
diff --git a/src/ports/SkTypeface_win_dw.cpp b/src/ports/SkTypeface_win_dw.cpp
index 8b9ed16d1d845e5d21a199e94e6db0cc479b1a56..563a5153d61f49ce51b87f6089217fa1408cfb54 100644
--- a/src/ports/SkTypeface_win_dw.cpp
+++ b/src/ports/SkTypeface_win_dw.cpp
@@ -137,7 +137,7 @@ public:
         : fIndex(0), fStrings(strings)
     { }
 
-    virtual bool next(SkTypeface::LocalizedString* localizedString) SK_OVERRIDE {
+    bool next(SkTypeface::LocalizedString* localizedString) SK_OVERRIDE {
         if (fIndex >= fStrings->GetCount()) {
             return false;
         }