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

include/effects/SkPictureImageFilter.h

 /*
  * Copyright 2013 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPictureImageFilter_DEFINED
 #define SkPictureImageFilter_DEFINED
 
@@ skipping 47 matching lines @@
     explicit SkPictureImageFilter(const SkPicture* picture, uint32_t uniqueID);
     SkPictureImageFilter(const SkPicture* picture, const SkRect& cropRect, uint32_t uniqueID,
                          PictureResolution, SkPaint::FilterLevel);
     virtual ~SkPictureImageFilter();
     /*  Constructs an SkPictureImageFilter object from an SkReadBuffer.
      *  Note: If the SkPictureImageFilter object construction requires bitmap
      *  decoding, the decoder must be set on the SkReadBuffer parameter by calling
      *  SkReadBuffer::setBitmapDecoder() before calling this constructor.
      *  @param SkReadBuffer Serialized picture data.
      */
-    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
+    void flatten(SkWriteBuffer&) const SK_OVERRIDE;
     virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context&,
                                SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE;
 
 private:
 
 
     void drawPictureAtDeviceResolution(Proxy*, SkBaseDevice*, const SkIRect& deviceBounds,
                                        const Context&) const;
     void drawPictureAtLocalResolution(Proxy*, SkBaseDevice*, const SkIRect& deviceBounds,
                                       const Context&) const;
 
     const SkPicture*      fPicture;
     SkRect                fCropRect;
     PictureResolution     fPictureResolution;
     SkPaint::FilterLevel  fFilterLevel;
     typedef SkImageFilter INHERITED;
 };
 
 #endif