[Android] Implementation of overscroll effect for Android L

content/renderer/input/input_handler_proxy.cc

Index: content/renderer/input/input_handler_proxy.cc
diff --git a/content/renderer/input/input_handler_proxy.cc b/content/renderer/input/input_handler_proxy.cc
index 78f0c8b822fa125fe0f5c81e068989812d9a8475..28bc0d14502b3ba19e8ff4ca9f07774c7750e306 100644
--- a/content/renderer/input/input_handler_proxy.cc
+++ b/content/renderer/input/input_handler_proxy.cc
@@ -655,6 +655,7 @@ void InputHandlerProxy::MainThreadHasStoppedFlinging() {
 }
 
 void InputHandlerProxy::DidOverscroll(
+    const gfx::PointF& causal_event_viewport_point,
     const gfx::Vector2dF& accumulated_overscroll,
     const gfx::Vector2dF& latest_overscroll_delta) {
   DCHECK(client_);
@@ -671,6 +672,7 @@ void InputHandlerProxy::DidOverscroll(
   params.latest_overscroll_delta = latest_overscroll_delta;
   params.current_fling_velocity =
       ToClientScrollIncrement(current_fling_velocity_);
+  params.causal_event_viewport_point = causal_event_viewport_point;
 
   if (fling_curve_) {
     static const int kFlingOverscrollThreshold = 1;