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

dm/DMCpuGMTask.h

Index: dm/DMCpuGMTask.h
diff --git a/dm/DMCpuGMTask.h b/dm/DMCpuGMTask.h
index 301cfd38647f475a3528907dedc2f1d575a3260b..8258f69e2e3387a8b59ff3bd1d8c731b9f458081 100644
--- a/dm/DMCpuGMTask.h
+++ b/dm/DMCpuGMTask.h
@@ -22,9 +22,9 @@ public:
               skiagm::GMRegistry::Factory,
               SkColorType);
 
-    virtual void draw() SK_OVERRIDE;
-    virtual bool shouldSkip() const SK_OVERRIDE;
-    virtual SkString name() const SK_OVERRIDE { return fName; }
+    void draw() SK_OVERRIDE;
+    bool shouldSkip() const SK_OVERRIDE;
+    SkString name() const SK_OVERRIDE { return fName; }
 
 private:
     skiagm::GMRegistry::Factory fGMFactory;