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

include/effects/SkBitmapSource.h

Index: include/effects/SkBitmapSource.h
diff --git a/include/effects/SkBitmapSource.h b/include/effects/SkBitmapSource.h
index cf57f8012e1f437bd522fd0a18a3fb24ce7ab7a2..327ff6477eb10e3586e7d98eb18b5c512e2e3bd9 100644
--- a/include/effects/SkBitmapSource.h
+++ b/include/effects/SkBitmapSource.h
@@ -20,7 +20,7 @@ public:
                                   const SkRect& dstRect) {
         return SkNEW_ARGS(SkBitmapSource, (bitmap, srcRect, dstRect));
     }
-    virtual void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE;
+    void computeFastBounds(const SkRect& src, SkRect* dst) const SK_OVERRIDE;
 
     SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBitmapSource)
@@ -28,7 +28,7 @@ public:
 protected:
     explicit SkBitmapSource(const SkBitmap& bitmap);
     SkBitmapSource(const SkBitmap& bitmap, const SkRect& srcRect, const SkRect& dstRect);
-    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;