RemoveRecordingAt  229 cc/layers/picture_layer_impl_unittest.cc     active_pile->RemoveRecordingAt(0, 0);
RemoveRecordingAt  110 cc/test/fake_picture_pile_impl.cc       RemoveRecordingAt(x, y);
RemoveRecordingAt   30 cc/test/fake_picture_pile_impl.h   void RemoveRecordingAt(int x, int y);