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

third_party/WebKit/Source/core/exported/WebViewBase.h

Index: third_party/WebKit/Source/core/exported/WebViewBase.h
diff --git a/third_party/WebKit/Source/core/exported/WebViewBase.h b/third_party/WebKit/Source/core/exported/WebViewBase.h
index 5b6db09f1a1c83cbe9ec3536584f0d4812ff0a10..6418cd87c2f2226eee6b7e2f30cbca15a6ff8671 100644
--- a/third_party/WebKit/Source/core/exported/WebViewBase.h
+++ b/third_party/WebKit/Source/core/exported/WebViewBase.h
@@ -40,6 +40,7 @@ class WebLayer;
 class WebLocalFrameBase;
 class WebLayerTreeView;
 class WebPagePopupImpl;
+struct WebScrollBoundaryBehavior;
 class WebSettingsImpl;
 struct WebRect;
 
@@ -63,6 +64,7 @@ class WebViewBase : public WebView, public RefCounted<WebViewBase> {
   virtual void SetCompositorDeviceScaleFactorOverride(float) = 0;
   virtual void SetDeviceEmulationTransform(const TransformationMatrix&) = 0;
   virtual void SetShowDebugBorders(bool) = 0;
+  virtual void SetScrollBoundaryBehavior(const WebScrollBoundaryBehavior&) = 0;
 
   virtual Page* GetPage() const = 0;
   virtual Frame* FocusedCoreFrame() const = 0;