device_scale_factor 709 cc/trees/layer_tree_impl.cc float LayerTreeImpl::device_scale_factor() const { device_scale_factor 229 ui/compositor/layer_unittest.cc float device_scale_factor() const { device_scale_factor 17 ui/events/gesture_detection/snap_scroll_controller.cc : screen_width_pixels(1), screen_height_pixels(1), device_scale_factor(1) {}