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 ebe4165520510c3d47bfa92c17ef6d5ccc094ddd..7b1316db8cdf2960758478fb14ecb8d98894c8d4 100644
--- a/third_party/WebKit/Source/core/exported/WebViewBase.h
+++ b/third_party/WebKit/Source/core/exported/WebViewBase.h
@@ -39,6 +39,7 @@ class WebLayer;
 class WebLocalFrameImpl;
 class WebLayerTreeView;
 class WebPagePopupImpl;
+struct WebScrollBoundaryBehavior;
 class WebSettingsImpl;
 struct WebRect;
 
@@ -62,6 +63,7 @@ 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(WebScrollBoundaryBehavior) const = 0;
 
   virtual Page* GetPage() const = 0;
   virtual Frame* FocusedCoreFrame() const = 0;