| Index: cc/trees/layer_tree_settings.cc | 
| diff --git a/cc/trees/layer_tree_settings.cc b/cc/trees/layer_tree_settings.cc | 
| index bcc59d02894cd6a45f91ad7b4ed14a2a8c5b847c..74fb0d0df3106f01772ca643762be15d4ef11847 100644 | 
| --- a/cc/trees/layer_tree_settings.cc | 
| +++ b/cc/trees/layer_tree_settings.cc | 
| @@ -17,6 +17,8 @@ LayerTreeSettings::LayerTreeSettings() | 
| allow_antialiasing(true), | 
| throttle_frame_production(true), | 
| begin_impl_frame_scheduling_enabled(false), | 
| +      main_frame_before_draw_enabled(true), | 
| +      main_frame_before_activation_enabled(false), | 
| using_synchronous_renderer_compositor(false), | 
| per_tile_painting_enabled(false), | 
| partial_swap_enabled(false), | 
|  |