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

cc/trees/layer_tree_host.h

Index: cc/trees/layer_tree_host.h
diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h
index 3919895a6828d8c904ec6b3b02882d122154aaf6..2f88fdcff5c3d0b1f77c636358a57724fe13563c 100644
--- a/cc/trees/layer_tree_host.h
+++ b/cc/trees/layer_tree_host.h
@@ -59,6 +59,7 @@ class MutatorEvents;
 class MutatorHost;
 struct PendingPageScaleAnimation;
 class RenderingStatsInstrumentation;
+struct ScrollBoundaryBehavior;
 class TaskGraphRunner;
 class UIResourceManager;
 struct RenderingStats;
@@ -279,6 +280,8 @@ class CC_EXPORT LayerTreeHost : public NON_EXPORTED_BASE(SurfaceReferenceOwner),
   void SetBrowserControlsHeight(float height, bool shrink);
   void SetBrowserControlsShownRatio(float ratio);
   void SetBottomControlsHeight(float height);
+  void SetScrollBoundaryBehavior(
+      ScrollBoundaryBehavior scroll_boundary_behavior);
 
   void SetPageScaleFactorAndLimits(float page_scale_factor,
                                    float min_page_scale_factor,
@@ -569,6 +572,7 @@ class CC_EXPORT LayerTreeHost : public NON_EXPORTED_BASE(SurfaceReferenceOwner),
   float top_controls_height_ = 0.f;
   float top_controls_shown_ratio_ = 0.f;
   bool browser_controls_shrink_blink_size_ = false;
+  ScrollBoundaryBehavior scroll_boundary_behavior_;
 
   float bottom_controls_height_ = 0.f;