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

bench/CmapBench.cpp

Index: bench/CmapBench.cpp
diff --git a/bench/CmapBench.cpp b/bench/CmapBench.cpp
index db4ed74951b3fcab99c186c2ddefaa05dd7d7ec3..ca0b25d28299c55c7605fac9e023d0cd7ac0799e 100644
--- a/bench/CmapBench.cpp
+++ b/bench/CmapBench.cpp
@@ -81,11 +81,11 @@ public:
     }
 
 protected:
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         return fName.c_str();
     }
 
-    virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
         fProc(loops, fPaint, fText, sizeof(fText), NGLYPHS);
     }