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

include/effects/SkMatrixImageFilter.h

 /*
  * Copyright 2014 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 SkMatrixImageFilter_DEFINED
 #define SkMatrixImageFilter_DEFINED
 
@@ skipping 16 matching lines @@
      *  @param input        The input image filter.  If NULL, the src bitmap
      *                      passed to filterImage() is used instead.
      */
 
     static SkMatrixImageFilter* Create(const SkMatrix& transform,
                                        SkPaint::FilterLevel,
                                        SkImageFilter* input = NULL,
                                        uint32_t uniqueID = 0);
     virtual ~SkMatrixImageFilter();
 
-    virtual void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE;
+    void computeFastBounds(const SkRect&, SkRect*) const SK_OVERRIDE;
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkMatrixImageFilter)
 
 protected:
     SkMatrixImageFilter(const SkMatrix& transform,
                         SkPaint::FilterLevel,
                         SkImageFilter* input,
                         uint32_t uniqueID);
-    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* loc) const SK_OVERRIDE;
     virtual bool onFilterBounds(const SkIRect& src, const SkMatrix&,
                                 SkIRect* dst) const SK_OVERRIDE;
 
 private:
     SkMatrix              fTransform;
     SkPaint::FilterLevel  fFilterLevel;
     typedef SkImageFilter INHERITED;
 };
 
 #endif