Cleanup: More override fixes - another round.

BUG=skia:3075
TEST=ninja -C out/Debug
TBR=reed@google.com

Review URL: https://codereview.chromium.org/831113002
diff --git a/src/animator/SkDisplayMath.h b/src/animator/SkDisplayMath.h
index 9153795..301e0f2 100644
--- a/src/animator/SkDisplayMath.h
+++ b/src/animator/SkDisplayMath.h
@@ -18,9 +18,9 @@
     DECLARE_DISPLAY_MEMBER_INFO(Math);
     virtual void executeFunction(SkDisplayable* , int index,
         SkTDArray<SkScriptValue>& parameters, SkDisplayTypes type,
-        SkScriptValue* );
-    virtual const SkFunctionParamType* getFunctionsParameters();
-    virtual bool getProperty(int index, SkScriptValue* value) const;
+        SkScriptValue* ) SK_OVERRIDE;
+    virtual const SkFunctionParamType* getFunctionsParameters() SK_OVERRIDE;
+    virtual bool getProperty(int index, SkScriptValue* value) const SK_OVERRIDE;
 private:
     mutable SkRandom fRandom;
     static const SkScalar gConstants[];