cc: Make LayerAnimationController keep state for clearing scroll delta

cc/test/animation_test_common.cc

Index: cc/test/animation_test_common.cc
diff --git a/cc/test/animation_test_common.cc b/cc/test/animation_test_common.cc
index f3fc212faeaaa88ec3442c16220e1ef86d910ea6..f6179cc9d6c99a2e117b4d8aa43248200a709d65 100644
--- a/cc/test/animation_test_common.cc
+++ b/cc/test/animation_test_common.cc
@@ -206,9 +206,7 @@ float FakeFloatTransition::GetValue(base::TimeDelta time) const {
 }
 
 FakeLayerAnimationValueObserver::FakeLayerAnimationValueObserver()
-    : opacity_(0.0f),
-      animation_waiting_for_deletion_(false),
-      scroll_offset_animation_removed_(false) {
+    : opacity_(0.0f), animation_waiting_for_deletion_(false) {
 }
 
 FakeLayerAnimationValueObserver::~FakeLayerAnimationValueObserver() {}
@@ -236,10 +234,6 @@ void FakeLayerAnimationValueObserver::OnAnimationWaitingForDeletion() {
   animation_waiting_for_deletion_ = true;
 }
 
-void FakeLayerAnimationValueObserver::OnScrollOffsetAnimationRemoved() {
-  scroll_offset_animation_removed_ = true;
-}
-
 bool FakeLayerAnimationValueObserver::IsActive() const {
   return true;
 }