CC Animation: Rename Active Players to Ticking Players.

cc/test/animation_timelines_test_common.cc

Index: cc/test/animation_timelines_test_common.cc
diff --git a/cc/test/animation_timelines_test_common.cc b/cc/test/animation_timelines_test_common.cc
index 52c3bd73c4e83d9813242856daaa9194dbd9820d..d6c2890006e090c80984ad26fa0094cd9d0288ea 100644
--- a/cc/test/animation_timelines_test_common.cc
+++ b/cc/test/animation_timelines_test_common.cc
@@ -424,18 +424,18 @@ void AnimationTimelinesTest::ReleaseRefPtrs() {
   timeline_impl_ = nullptr;
 }
 
-void AnimationTimelinesTest::AnimateLayersTransferEvents(
+void AnimationTimelinesTest::TickAnimationsTransferEvents(
     base::TimeTicks time,
     unsigned expect_events) {
   std::unique_ptr<MutatorEvents> events = host_->CreateEvents();
 
-  host_impl_->AnimateLayers(time);
+  host_impl_->TickAnimations(time);
   host_impl_->UpdateAnimationState(true, events.get());
 
   auto animation_events = static_cast<const AnimationEvents*>(events.get());
   EXPECT_EQ(expect_events, animation_events->events_.size());
 
-  host_->AnimateLayers(time);
+  host_->TickAnimations(time);
   host_->UpdateAnimationState(true, nullptr);
   host_->SetAnimationEvents(std::move(events));
 }