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

include/core/SkBitmap.h

 /*
  * Copyright 2006 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 SkBitmap_DEFINED
 #define SkBitmap_DEFINED
 
@@ skipping 676 matching lines @@
     private:
         typedef SkRefCnt INHERITED;
     };
 
     /** Subclass of Allocator that returns a pixelref that allocates its pixel
         memory from the heap. This is the default Allocator invoked by
         allocPixels().
     */
     class HeapAllocator : public Allocator {
     public:
-        virtual bool allocPixelRef(SkBitmap*, SkColorTable*) SK_OVERRIDE;
+        bool allocPixelRef(SkBitmap*, SkColorTable*) SK_OVERRIDE;
     };
 
     class RLEPixels {
     public:
         RLEPixels(int width, int height);
         virtual ~RLEPixels();
 
         uint8_t* packedAtY(int y) const {
             SkASSERT((unsigned)y < (unsigned)fHeight);
             return fYPtrs[y];
@@ skipping 102 matching lines @@
 
 inline SkPMColor SkBitmap::getIndex8Color(int x, int y) const {
     SkASSERT(fPixels);
     SkASSERT(kIndex_8_SkColorType == this->colorType());
     SkASSERT((unsigned)x < (unsigned)this->width() && (unsigned)y < (unsigned)this->height());
     SkASSERT(fColorTable);
     return (*fColorTable)[*((const uint8_t*)fPixels + y * fRowBytes + x)];
 }
 
 #endif