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

tests/BitmapHeapTest.cpp

Index: tests/BitmapHeapTest.cpp
diff --git a/tests/BitmapHeapTest.cpp b/tests/BitmapHeapTest.cpp
index c7d097278b3501a6765599642b34c16940f1a229..21ce2f39e8500e60bbd2f52835c34cb43abb375a 100644
--- a/tests/BitmapHeapTest.cpp
+++ b/tests/BitmapHeapTest.cpp
@@ -18,11 +18,11 @@
 struct SimpleFlatController : public SkFlatController {
     SimpleFlatController() : SkFlatController() {}
     ~SimpleFlatController() { fAllocations.freeAll(); }
-    virtual void* allocThrow(size_t bytes) SK_OVERRIDE {
+    void* allocThrow(size_t bytes) SK_OVERRIDE {
         fAllocations.push(sk_malloc_throw(bytes));
         return fAllocations.top();
     }
-    virtual void unalloc(void*) SK_OVERRIDE { }
+    void unalloc(void*) SK_OVERRIDE { }
     void setBitmapStorage(SkBitmapHeap* h) { this->setBitmapHeap(h); }
 private:
     SkTDArray<void*> fAllocations;