SetViewportDamage 2643 cc/trees/layer_tree_host_impl.cc   SetViewportDamage(gfx::Rect(DrawViewportSize()));
SetViewportDamage  173 cc/trees/layer_tree_host_impl.h   void SetViewportDamage(const gfx::Rect& damage_rect);
SetViewportDamage  312 cc/trees/single_thread_proxy.cc   layer_tree_host_impl_->SetViewportDamage(damage_rect);
SetViewportDamage  599 cc/trees/thread_proxy.cc   impl().layer_tree_host_impl->SetViewportDamage(damage_rect);