first_draw_for_source_frame_ 711 cc/trees/layer_tree_host_unittest_delegated.cc first_draw_for_source_frame_ = true; first_draw_for_source_frame_ 720 cc/trees/layer_tree_host_unittest_delegated.cc if (!first_draw_for_source_frame_) first_draw_for_source_frame_ 822 cc/trees/layer_tree_host_unittest_delegated.cc bool first_draw_for_source_frame_;