Removing base::Time from SetAnimationEvents and PostAnimationEventsToMainThreadOnImplThread.

cc/trees/layer_tree_host.cc

Index: cc/trees/layer_tree_host.cc
diff --git a/cc/trees/layer_tree_host.cc b/cc/trees/layer_tree_host.cc
index aab0e6765a20cc76bd702270a11a5efcf1a7ddfd..40ed7acfe7ab8c8ec84e62440254ceebc2b4839b 100644
--- a/cc/trees/layer_tree_host.cc
+++ b/cc/trees/layer_tree_host.cc
@@ -562,8 +562,8 @@ void LayerTreeHost::SetNextCommitForcesRedraw() {
   next_commit_forces_redraw_ = true;
 }
 
-void LayerTreeHost::SetAnimationEvents(scoped_ptr<AnimationEventsVector> events,
-                                       base::Time wall_clock_time) {
+void LayerTreeHost::SetAnimationEvents(
+    scoped_ptr<AnimationEventsVector> events) {
   DCHECK(proxy_->IsMainThread());
   for (size_t event_index = 0; event_index < events->size(); ++event_index) {
     int event_layer_id = (*events)[event_index].layer_id;