cc : Track transform animation changes on transform tree

cc/trees/layer_tree_host_impl.cc

 // Copyright 2011 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/trees/layer_tree_host_impl.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 3848 matching lines @@
     LayerTreeImpl* tree,
     const gfx::ScrollOffset& scroll_offset) {
   if (!tree)
     return;
 
   LayerImpl* layer = tree->LayerById(layer_id);
   if (layer)
     layer->OnScrollOffsetAnimated(scroll_offset);
 }
 
-void LayerTreeHostImpl::TreeLayerTransformIsPotentiallyAnimatingChanged(
-    int layer_id,
-    LayerTreeImpl* tree,
-    bool is_animating) {
-  if (!tree)
-    return;
-
-  LayerImpl* layer = tree->LayerById(layer_id);
-  if (layer)
-    layer->OnTransformIsPotentiallyAnimatingChanged(is_animating);
-}
-
 bool LayerTreeHostImpl::AnimationsPreserveAxisAlignment(
     const LayerImpl* layer) const {
   return animation_host_->AnimationsPreserveAxisAlignment(layer->id());
 }
 
 void LayerTreeHostImpl::SetElementFilterMutated(
     ElementId element_id,
     ElementListType list_type,
     const FilterOperations& filters) {
   if (list_type == ElementListType::ACTIVE) {
@@ skipping 32 matching lines @@
     ElementListType list_type,
     const gfx::ScrollOffset& scroll_offset) {
   if (list_type == ElementListType::ACTIVE) {
     SetTreeLayerScrollOffsetMutated(element_id, active_tree(), scroll_offset);
   } else {
     SetTreeLayerScrollOffsetMutated(element_id, pending_tree(), scroll_offset);
     SetTreeLayerScrollOffsetMutated(element_id, recycle_tree(), scroll_offset);
   }
 }
 
-void LayerTreeHostImpl::ElementTransformIsPotentiallyAnimatingChanged(
+void LayerTreeHostImpl::ElementTransformIsAnimatingChanged(
     ElementId element_id,
     ElementListType list_type,
+    AnimationChangeType change_type,
     bool is_animating) {
-  if (list_type == ElementListType::ACTIVE) {
-    TreeLayerTransformIsPotentiallyAnimatingChanged(element_id, active_tree(),
-                                                    is_animating);
-  } else {
-    TreeLayerTransformIsPotentiallyAnimatingChanged(element_id, pending_tree(),
-                                                    is_animating);
+  LayerTreeImpl* tree =
+      list_type == ElementListType::ACTIVE ? active_tree() : pending_tree();
+  if (!tree)
+    return;
+  LayerImpl* layer = tree->LayerById(element_id);
+  if (layer) {
+    switch (change_type) {
+      case AnimationChangeType::POTENTIAL:
+        layer->OnTransformIsPotentiallyAnimatingChanged(is_animating);
+        break;
+      case AnimationChangeType::RUNNING:
+        layer->OnTransformIsCurrentlyAnimatingChanged(is_animating);
+        break;
+      case AnimationChangeType::BOTH:
+        layer->OnTransformIsPotentiallyAnimatingChanged(is_animating);
+        layer->OnTransformIsCurrentlyAnimatingChanged(is_animating);
+        break;
+    }
   }
 }
+
 void LayerTreeHostImpl::ElementOpacityIsAnimatingChanged(
     ElementId element_id,
     ElementListType list_type,
     AnimationChangeType change_type,
     bool is_animating) {
   LayerTreeImpl* tree =
       list_type == ElementListType::ACTIVE ? active_tree() : pending_tree();
   if (!tree)
     return;
   LayerImpl* layer = tree->LayerById(element_id);
@@ skipping 46 matching lines @@
     const {
   return fixed_raster_scale_attempted_scale_change_history_.count() >=
          kFixedRasterScaleAttemptedScaleChangeThreshold;
 }
 
 void LayerTreeHostImpl::SetFixedRasterScaleAttemptedToChangeScale() {
   fixed_raster_scale_attempted_scale_change_history_.set(0);
 }
 
 }  // namespace cc