VR: Disable Overscroll Glow in VrShell

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 08ef4aede304e26ffaeedd96606a706c3ec47796..78852b78ab11fcd99766732b93cbd3a6382135fb 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -1504,7 +1504,7 @@ void RenderWidgetHostViewAndroid::SendBeginFrame(base::TimeTicks frame_time,
 
 bool RenderWidgetHostViewAndroid::Animate(base::TimeTicks frame_time) {
   bool needs_animate = false;
-  if (overscroll_controller_) {
+  if (overscroll_controller_ && is_showing_overscroll_glow_) {
     needs_animate |= overscroll_controller_->Animate(
         frame_time, content_view_core_->GetViewAndroid()->GetLayer());
   }
@@ -1719,6 +1719,10 @@ SkColor RenderWidgetHostViewAndroid::GetCachedBackgroundColor() const {
   return cached_background_color_;
 }
 
+void RenderWidgetHostViewAndroid::SetShowingOverscrollGlow(bool showing_glow) {
+  is_showing_overscroll_glow_ = showing_glow;
+}
+
 void RenderWidgetHostViewAndroid::DidOverscroll(
     const ui::DidOverscrollParams& params) {
   if (sync_compositor_)
@@ -1803,6 +1807,7 @@ void RenderWidgetHostViewAndroid::SetContentViewCore(
       view_.GetWindowAndroid()->GetCompositor()) {
     overscroll_controller_ = CreateOverscrollController(
         content_view_core_, ui::GetScaleFactorForNativeView(GetNativeView()));
+    is_showing_overscroll_glow_ = true;
   }
 }
 
@@ -1870,6 +1875,7 @@ void RenderWidgetHostViewAndroid::OnAttachCompositor() {
   if (!overscroll_controller_)
     overscroll_controller_ = CreateOverscrollController(
         content_view_core_, ui::GetScaleFactorForNativeView(GetNativeView()));
+  is_showing_overscroll_glow_ = true;
   ui::WindowAndroidCompositor* compositor =
       view_.GetWindowAndroid()->GetCompositor();
   delegated_frame_host_->RegisterFrameSinkHierarchy(