PictureMapKey      82 cc/resources/picture_pile_base.h   typedef std::pair<int, int> PictureMapKey;
PictureMapKey      83 cc/resources/picture_pile_base.h   typedef base::hash_map<PictureMapKey, PictureInfo> PictureMap;
PictureMapKey      32 cc/resources/picture_pile_unittest.cc   typedef PicturePile::PictureMapKey PictureMapKey;