Move OverscrollController to RenderWidgetHostViewAura

ui/events/gestures/gesture_configuration.cc

Index: ui/events/gestures/gesture_configuration.cc
diff --git a/ui/events/gestures/gesture_configuration.cc b/ui/events/gestures/gesture_configuration.cc
index 5205280b1de2c837fcb4e63320cd40dc32ea34f8..5e73b8b83ba6a0831dc4b209d97bf8fe8c79b85b 100644
--- a/ui/events/gestures/gesture_configuration.cc
+++ b/ui/events/gestures/gesture_configuration.cc
@@ -45,6 +45,14 @@ double GestureConfiguration::rail_break_proportion_ = 15;
 double GestureConfiguration::rail_start_proportion_ = 2;
 int GestureConfiguration::show_press_delay_in_ms_ = 150;
 
+// TODO(jdduke): Disable and remove entirely when issues with spurious
+// scroll end detection on the Pixel are resolved, crbug.com/353702.

[sadrul, 2014/05/27 15:37:05]

The debounce code was not added because of noisy touches. It was added because
of a scrolling behaviour where the finger actually leaves the touchscreen
briefly (start scrolling with your knuckle, and roll the finger as you scroll up
... weird behaviour, I know!)

+#if defined(OS_CHROMEOS)
+int GestureConfiguration::scroll_debounce_interval_in_ms_ = 30;
+#else
+int GestureConfiguration::scroll_debounce_interval_in_ms_ = 0;
+#endif
+
 // Coefficients for a function that computes fling acceleration.
 // These are empirically determined defaults. Do not adjust without
 // additional empirical validation.