Cleanup: Mark some overridden methods with 'SK_OVERRIDE'.

include/utils/SkDeferredCanvas.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkDeferredCanvas_DEFINED
 #define SkDeferredCanvas_DEFINED
 
@@ skipping 217 matching lines @@
 
         /**
          *  Called after pending draw commands have been skipped, meaning
          *  that they were optimized-out because the canvas is cleared
          *  or completely overwritten by the command currently being recorded.
          */
         virtual void skippedPendingDrawCommands() {}
     };
 
 protected:
-    virtual SkCanvas* canvasForDrawIter();
+    virtual SkCanvas* canvasForDrawIter() SK_OVERRIDE;
     SkDeferredDevice* getDeferredDevice() const;
 
 private:
     SkDeferredCanvas(SkDeferredDevice*);
 
     void recordedDrawCommand();
     SkCanvas* drawingCanvas() const;
     SkCanvas* immediateCanvas() const;
     bool isFullFrame(const SkRect*, const SkPaint*) const;
     void validate() const;
     void init();
 
     size_t fBitmapSizeThreshold;
     bool   fDeferredDrawing;
 
     mutable SkISize fCachedCanvasSize;
     mutable bool    fCachedCanvasSizeDirty;
 
     friend class SkDeferredCanvasTester; // for unit testing
     typedef SkCanvas INHERITED;
 };
 
 
 #endif