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

bench/ImageCacheBench.cpp

Index: bench/ImageCacheBench.cpp
diff --git a/bench/ImageCacheBench.cpp b/bench/ImageCacheBench.cpp
index b8f40c87fc08d7e56fbe70d3385e08e17fa8c1c3..1160f9353db55928e5334b63725d4fe7785ec3cc 100644
--- a/bench/ImageCacheBench.cpp
+++ b/bench/ImageCacheBench.cpp
@@ -24,8 +24,8 @@ struct TestRec : public SkResourceCache::Rec {
 
     TestRec(const TestKey& key, intptr_t value) : fKey(key), fValue(value) {}
 
-    virtual const Key& getKey() const SK_OVERRIDE { return fKey; }
-    virtual size_t bytesUsed() const SK_OVERRIDE { return sizeof(fKey) + sizeof(fValue); }
+    const Key& getKey() const SK_OVERRIDE { return fKey; }
+    size_t bytesUsed() const SK_OVERRIDE { return sizeof(fKey) + sizeof(fValue); }
 
     static bool Visitor(const SkResourceCache::Rec&, void*) {
         return true;
@@ -49,11 +49,11 @@ public:
     }
 
 protected:
-    virtual const char* onGetName() SK_OVERRIDE {
+    const char* onGetName() SK_OVERRIDE {
         return "imagecache";
     }
 
-    virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
+    void onDraw(const int loops, SkCanvas*) SK_OVERRIDE {
         if (fCache.getTotalBytesUsed() == 0) {
             this->populateCache();
         }