Send takeover msg from MT to CC using the animation path.

cc/animation/animation_host.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/animation/animation_host.h"
 
 #include <algorithm>
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 377 matching lines @@
 bool AnimationHost::HasAnyAnimationTargetingProperty(
     ElementId element_id,
     TargetProperty::Type property) const {
   auto element_animations = GetElementAnimationsForElementId(element_id);
   if (!element_animations)
     return false;
 
   return !!element_animations->GetAnimation(property);
 }
 
-bool AnimationHost::ScrollOffsetIsAnimatingOnImplOnly(
-    ElementId element_id) const {
-  auto element_animations = GetElementAnimationsForElementId(element_id);
-  if (!element_animations)
-    return false;
-
-  Animation* animation =
-      element_animations->GetAnimation(TargetProperty::SCROLL_OFFSET);
-  return animation && animation->is_impl_only();
-}
-
 bool AnimationHost::HasFilterAnimationThatInflatesBounds(
     ElementId element_id) const {
   auto element_animations = GetElementAnimationsForElementId(element_id);
   return element_animations
              ? element_animations->HasFilterAnimationThatInflatesBounds()
              : false;
 }
 
 bool AnimationHost::HasTransformAnimationThatInflatesBounds(
     ElementId element_id) const {
@@ skipping 140 matching lines @@
 const AnimationHost::ElementToAnimationsMap&
 AnimationHost::all_element_animations_for_testing() const {
   return element_to_animations_map_;
 }
 
 void AnimationHost::OnAnimationWaitingForDeletion() {
   animation_waiting_for_deletion_ = true;
 }
 
 }  // namespace cc