Update scroll layers' bounds_delta earlier during tree activation.

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 2c8fbb82b5d1e26fe3cbaf0d547f46bacc1bfebe..997c85242f6a7306e88bc26c75df9c0b09455179 100644
--- a/cc/trees/layer_tree_impl.cc
+++ b/cc/trees/layer_tree_impl.cc
@@ -414,6 +414,11 @@ void LayerTreeImpl::PushPropertiesTo(LayerTreeImpl* target_tree) {
   target_tree->SetCurrentlyScrollingLayer(layer);
   target_tree->UpdatePropertyTreeScrollOffset(&property_trees_);
 
+  // This needs to be called early so that we don't clamp with incorrect max
+  // offsets when UpdateViewportContainerSizes is called from e.g.
+  // PushTopControls
+  target_tree->UpdatePropertyTreesForBoundsDelta();
+
   if (next_activation_forces_redraw_) {
     target_tree->ForceRedrawNextActivation();
     next_activation_forces_redraw_ = false;