Communicate MT changes to impl-only scroll offset animations

cc/animation/animation_host_perftest.cc

Index: cc/animation/animation_host_perftest.cc
diff --git a/cc/animation/animation_host_perftest.cc b/cc/animation/animation_host_perftest.cc
index 32b999b69f5b5ee9e9550d17a78c52a7fdc64146..58e4dad36fd07644f58f20568377007d86309226 100644
--- a/cc/animation/animation_host_perftest.cc
+++ b/cc/animation/animation_host_perftest.cc
@@ -105,7 +105,9 @@ class AnimationHostPerfTest : public testing::Test {
   void DoTest() {
     timer_.Reset();
     do {
-      host()->PushPropertiesTo(host_impl());
+      host()->PushPropertiesTo(
+          host_impl(),
+          layer_tree_host_->host_impl()->CurrentBeginFrameArgs().frame_time);
       timer_.NextLap();
     } while (!timer_.HasTimeLimitExpired());