cc : Split TransformTree::ComputeTransform

cc/trees/property_tree_builder.cc

 // Copyright 2014 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/property_tree_builder.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <set>
@@ skipping 551 matching lines @@
   if (IsContainerForFixedPositionLayers(layer) || is_fixed)
     data_for_children->scroll_snap = gfx::Vector2dF();
 
   if (!requires_node) {
     data_for_children->should_flatten |= ShouldFlattenTransform(layer);
     gfx::Vector2dF local_offset = layer->position().OffsetFromOrigin() +
                                   layer->transform().To2dTranslation();
     gfx::Vector2dF source_to_parent;
     if (source_index != parent_index) {
       gfx::Transform to_parent;
-      data_from_ancestor.property_trees->transform_tree.ComputeTransform(
+      data_from_ancestor.property_trees->transform_tree.ComputeTranslation(
           source_index, parent_index, &to_parent);
       source_to_parent = to_parent.To2dTranslation();
     }
     layer->set_offset_to_transform_parent(source_offset + source_to_parent +
                                           local_offset);
     layer->set_should_flatten_transform_from_property_tree(
         data_from_ancestor.should_flatten);
     layer->SetTransformTreeIndex(parent_index);
     return false;
   }
@@ skipping 889 matching lines @@
     color = SkColorSetA(color, 255);
   BuildPropertyTreesTopLevelInternal(
       root_layer, page_scale_layer, inner_viewport_scroll_layer,
       outer_viewport_scroll_layer, overscroll_elasticity_layer,
       elastic_overscroll, page_scale_factor, device_scale_factor, viewport,
       device_transform, property_trees, color);
   property_trees->ResetCachedData();
 }
 
 }  // namespace cc