Cleanup resourceless_software_draw()

cc/trees/layer_tree_impl.cc

Index: cc/trees/layer_tree_impl.cc
diff --git a/cc/trees/layer_tree_impl.cc b/cc/trees/layer_tree_impl.cc
index c9526f93477a6b7d1f6198796bc8ee65e569aff5..0a4dc8bc41be25c0395e8d8a523bb6678814e118 100644
--- a/cc/trees/layer_tree_impl.cc
+++ b/cc/trees/layer_tree_impl.cc
@@ -456,7 +456,9 @@ bool LayerTreeImpl::UpdateDrawProperties() {
                  source_frame_number_);
     LayerImpl* page_scale_layer =
         page_scale_layer_ ? page_scale_layer_ : InnerViewportContainerLayer();
-    bool can_render_to_separate_surface = !resourceless_software_draw();
+    bool can_render_to_separate_surface =
+        (layer_tree_host_impl_->GetDrawMode() !=
+         DRAW_MODE_RESOURCELESS_SOFTWARE);
 
     ++render_surface_layer_list_id_;
     LayerTreeHostCommon::CalcDrawPropsImplInputs inputs(
@@ -685,11 +687,6 @@ MemoryHistory* LayerTreeImpl::memory_history() const {
   return layer_tree_host_impl_->memory_history();
 }
 
-bool LayerTreeImpl::resourceless_software_draw() const {
-  return layer_tree_host_impl_->GetDrawMode() ==
-         DRAW_MODE_RESOURCELESS_SOFTWARE;
-}
-
 gfx::Size LayerTreeImpl::device_viewport_size() const {
   return layer_tree_host_impl_->device_viewport_size();
 }