Use scroll-boundary-behavior to control overscroll-refresh/glow on android.

cc/trees/layer_tree_host.cc

Index: cc/trees/layer_tree_host.cc
diff --git a/cc/trees/layer_tree_host.cc b/cc/trees/layer_tree_host.cc
index 9d6cb1de17baada141176300b67f5358d32bef91..e46e2c6a70621a721b79ada546a824873656ddc5 100644
--- a/cc/trees/layer_tree_host.cc
+++ b/cc/trees/layer_tree_host.cc
@@ -35,6 +35,7 @@
 #include "cc/debug/rendering_stats_instrumentation.h"
 #include "cc/input/layer_selection_bound.h"
 #include "cc/input/page_scale_animation.h"
+#include "cc/input/scroll_boundary_behavior.h"
 #include "cc/layers/heads_up_display_layer.h"
 #include "cc/layers/heads_up_display_layer_impl.h"
 #include "cc/layers/layer.h"
@@ -981,6 +982,14 @@ void LayerTreeHost::SetBottomControlsHeight(float height) {
   SetNeedsCommit();
 }
 
+void LayerTreeHost::SetScrollBoundaryBehavior(
+    const ScrollBoundaryBehavior& behavior) {
+  if (scroll_boundary_behavior_ == behavior)
+    return;
+  scroll_boundary_behavior_ = behavior;
+  SetNeedsCommit();
+}
+
 void LayerTreeHost::SetPageScaleFactorAndLimits(float page_scale_factor,
                                                 float min_page_scale_factor,
                                                 float max_page_scale_factor) {
@@ -1215,6 +1224,7 @@ void LayerTreeHost::PushLayerTreePropertiesTo(LayerTreeImpl* tree_impl) {
       browser_controls_shrink_blink_size_);
   tree_impl->set_top_controls_height(top_controls_height_);
   tree_impl->set_bottom_controls_height(bottom_controls_height_);
+  tree_impl->set_scroll_boundary_behavior(scroll_boundary_behavior_);
   tree_impl->PushBrowserControlsFromMainThread(top_controls_shown_ratio_);
   tree_impl->elastic_overscroll()->PushFromMainThread(elastic_overscroll_);
   if (tree_impl->IsActiveTree())