Take MT jank into account when animating the scroll offset on CC

cc/trees/layer_tree_host_unittest_animation.cc

Index: cc/trees/layer_tree_host_unittest_animation.cc
diff --git a/cc/trees/layer_tree_host_unittest_animation.cc b/cc/trees/layer_tree_host_unittest_animation.cc
index a0a67d31647915d55bcd6ff8350c83570fd5c488..683d3f4c53c787a29f78573e3c12161a3650fbf7 100644
--- a/cc/trees/layer_tree_host_unittest_animation.cc
+++ b/cc/trees/layer_tree_host_unittest_animation.cc
@@ -801,7 +801,7 @@ class LayerTreeHostAnimationTestScrollOffsetAnimationTakeover
     if (host_impl->sync_tree()->source_frame_number() == 0) {
       host_impl->animation_host()->ImplOnlyScrollAnimationCreate(
           scroll_layer_->element_id(), gfx::ScrollOffset(650.f, 750.f),
-          gfx::ScrollOffset(10, 20));
+          gfx::ScrollOffset(10, 20), base::TimeDelta());
     }
   }
 
@@ -891,7 +891,7 @@ class LayerTreeHostAnimationTestScrollOffsetAnimationAdjusted
     if (host_impl->sync_tree()->source_frame_number() == 0) {
       host_impl->animation_host()->ImplOnlyScrollAnimationCreate(
           scroll_layer_->element_id(), gfx::ScrollOffset(650.f, 750.f),
-          gfx::ScrollOffset(10, 20));
+          gfx::ScrollOffset(10, 20), base::TimeDelta());
     }
   }