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

dm/DMWriteTask.h

Index: dm/DMWriteTask.h
diff --git a/dm/DMWriteTask.h b/dm/DMWriteTask.h
index c6ef1cb20b9df41993e6dccb083e413db4955d4d..fb80058fd092f89914e471badd43f92b8c76da79 100644
--- a/dm/DMWriteTask.h
+++ b/dm/DMWriteTask.h
@@ -25,9 +25,9 @@ public:
               SkStreamAsset* data,     // Pre-encoded data to write to disk.
               const char* ext);        // File extension.
 
-    virtual void draw() SK_OVERRIDE;
-    virtual bool shouldSkip() const SK_OVERRIDE;
-    virtual SkString name() const SK_OVERRIDE;
+    void draw() SK_OVERRIDE;
+    bool shouldSkip() const SK_OVERRIDE;
+    SkString name() const SK_OVERRIDE;
 
 private:
     SkTArray<SkString> fSuffixes;