[not for review - epic CL] Adding Elastic+Momentum+Layered scrolling to views::ScrollView

ui/events/blink/input_handler_proxy.cc

Index: ui/events/blink/input_handler_proxy.cc
diff --git a/ui/events/blink/input_handler_proxy.cc b/ui/events/blink/input_handler_proxy.cc
index 81b1d09911abf69a624d484dda6ed4121f5aea52..7cd76d3623c4b3df5d99518045ca3fab02e1a3a0 100644
--- a/ui/events/blink/input_handler_proxy.cc
+++ b/ui/events/blink/input_handler_proxy.cc
@@ -252,10 +252,11 @@ InputHandlerProxy::InputHandlerProxy(cc::InputHandler* input_handler,
   DCHECK(client);
   input_handler_->BindToClient(this);
   cc::ScrollElasticityHelper* scroll_elasticity_helper =
-      input_handler_->CreateScrollElasticityHelper();
+      input_handler_->CreateRootScrollElasticityHelper();
   if (scroll_elasticity_helper) {
-    scroll_elasticity_controller_.reset(
-        new InputScrollElasticityController(scroll_elasticity_helper));
+    scroll_elasticity_controller_.reset(new InputScrollElasticityController());
+    scroll_elasticity_controller_->SetActiveHelper(
+        scroll_elasticity_helper->GetWeakPtr());
   }
 }