Revert of Touchpad and wheel scroll latching for ChromeOS behind flag.

ui/events/blink/input_handler_proxy.h

Index: ui/events/blink/input_handler_proxy.h
diff --git a/ui/events/blink/input_handler_proxy.h b/ui/events/blink/input_handler_proxy.h
index 0aab864cd131331bb1f9e686108cf6b7564a3f85..d73ff9c3746f0768d9f393ebd5174690f216c20f 100644
--- a/ui/events/blink/input_handler_proxy.h
+++ b/ui/events/blink/input_handler_proxy.h
@@ -62,9 +62,6 @@
   }
 
   void set_smooth_scroll_enabled(bool value) { smooth_scroll_enabled_ = value; }
-  void set_touchpad_and_wheel_scroll_latching_enabled(bool value) {
-    touchpad_and_wheel_scroll_latching_enabled_ = value;
-  }
 
   enum EventDisposition {
     DID_HANDLE,
@@ -130,7 +127,7 @@
   // Helper functions for handling more complicated input events.
   EventDisposition HandleMouseWheel(
       const blink::WebMouseWheelEvent& event);
-  EventDisposition FlingScrollByMouseWheel(
+  EventDisposition ScrollByMouseWheel(
       const blink::WebMouseWheelEvent& event,
       cc::EventListenerProperties listener_properties);
   EventDisposition HandleGestureScrollBegin(
@@ -238,7 +235,6 @@
 
   bool smooth_scroll_enabled_;
   bool uma_latency_reporting_enabled_;
-  bool touchpad_and_wheel_scroll_latching_enabled_;
 
   // The merged result of the last touch start with previous touch starts.
   // This value will get returned for subsequent TouchMove events to allow