void nsRegionPh :: Subtract(const nsIRegion &aRegion) { PhTile_t *tiles; aRegion.GetNativeRegion((void*&)tiles);  PR_LOG(PhGfxLog, PR_LOG_DEBUG, ("nsRegionPh::Subtract with nsIRegion mRegion=<%p> tiles=<%p>\n", mRegion, tiles));  mRegion = PhClipTilings(mRegion, tiles, NULL); }
virtual void Subtract(const nsIRegion &aRegion) { PhTile_t *tiles; aRegion.GetNativeRegion((void*&)tiles); mRegion = PhClipTilings( mRegion, tiles, NULL ); }
void nsRegionPh :: Subtract(const nsIRegion &aRegion){  PhTile_t *tiles;  aRegion.GetNativeRegion((void*&)tiles);  PR_LOG(PhGfxLog, PR_LOG_DEBUG, ("nsRegionPh::Subtract with nsIRegion mRegion=<%p> tiles=<%p>\n", mRegion, tiles));  mRegion = PhClipTilings(mRegion, tiles, NULL);}