[Android] Implementation of overscroll effect for Android L

cc/trees/layer_tree_host_unittest_scroll.cc

Index: cc/trees/layer_tree_host_unittest_scroll.cc
diff --git a/cc/trees/layer_tree_host_unittest_scroll.cc b/cc/trees/layer_tree_host_unittest_scroll.cc
index e1eb884faa665cd2a6e40ce1fdd1eab6e9c6a127..60ca59b834fdbc8ace6b44d075436e7bc4823807 100644
--- a/cc/trees/layer_tree_host_unittest_scroll.cc
+++ b/cc/trees/layer_tree_host_unittest_scroll.cc
@@ -1073,9 +1073,10 @@ class ThreadCheckingInputHandlerClient : public InputHandlerClient {
     *received_stop_flinging_ = true;
   }
 
-  virtual void DidOverscroll(const gfx::Vector2dF& accumulated_overscroll,
-                             const gfx::Vector2dF& latest_overscroll_delta)
-      OVERRIDE {
+  virtual void DidOverscroll(
+      const gfx::PointF& causal_event_viewport_point,
+      const gfx::Vector2dF& accumulated_overscroll,
+      const gfx::Vector2dF& latest_overscroll_delta) OVERRIDE {
     if (!task_runner_->BelongsToCurrentThread())
       ADD_FAILURE() << "DidOverscroll called on wrong thread";
   }