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

third_party/WebKit/Source/core/page/ChromeClientImpl.h

Index: third_party/WebKit/Source/core/page/ChromeClientImpl.h
diff --git a/third_party/WebKit/Source/core/page/ChromeClientImpl.h b/third_party/WebKit/Source/core/page/ChromeClientImpl.h
index c74cbde4e101780cb2e0e9a686c4f212ea7b3bd1..b62152d488249f8df77b96c18a0a806048ac661b 100644
--- a/third_party/WebKit/Source/core/page/ChromeClientImpl.h
+++ b/third_party/WebKit/Source/core/page/ChromeClientImpl.h
@@ -81,7 +81,8 @@ class CORE_EXPORT ChromeClientImpl final : public ChromeClient {
   void DidOverscroll(const FloatSize& overscroll_delta,
                      const FloatSize& accumulated_overscroll,
                      const FloatPoint& position_in_viewport,
-                     const FloatSize& velocity_in_viewport) override;
+                     const FloatSize& velocity_in_viewport,
+                     const WebScrollBoundaryBehavior&) override;
   bool ShouldReportDetailedMessageForSource(LocalFrame&,
                                             const String&) override;
   void AddMessageToConsole(LocalFrame*,
@@ -213,6 +214,7 @@ class CORE_EXPORT ChromeClientImpl final : public ChromeClient {
   void ShowUnhandledTapUIIfNeeded(IntPoint, Node*, bool) override;
   void OnMouseDown(Node&) override;
   void DidUpdateBrowserControls() const override;
+  void SetScrollBoundaryBehavior(const WebScrollBoundaryBehavior&) override;
 
   FloatSize ElasticOverscroll() const override;