Use surface contents scale from effect tree (3)

cc/trees/property_tree.h

 // 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.
 
 #ifndef CC_TREES_PROPERTY_TREE_H_
 #define CC_TREES_PROPERTY_TREE_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 139 matching lines @@
 
   // Computes the change of basis transform from node |source_id| to |dest_id|,
   // including any sublayer scale at |dest_id|.  The function returns false iff
   // the inverse of a singular transform was used (and the result should,
   // therefore, not be trusted).
   bool ComputeTransformWithDestinationSurfaceContentsScale(
       int source_id,
       int dest_id,
       gfx::Transform* transform) const;
 
-  // Returns true iff the nodes indexed by |source_id| and |dest_id| are 2D axis
-  // aligned with respect to one another.
-  bool Are2DAxisAligned(int source_id, int dest_id) const;
-
   void ResetChangeTracking();
   // Updates the parent, target, and screen space transforms and snapping.
   void UpdateTransforms(int id);
   void UpdateTransformChanged(TransformNode* node,
                               TransformNode* parent_node,
                               TransformNode* source_node);
   void UpdateNodeAndAncestorsAreAnimatedOrInvertible(
       TransformNode* node,
       TransformNode* parent_node);
 
@@ skipping 388 matching lines @@
   gfx::Vector2dF inner_viewport_container_bounds_delta_;
   gfx::Vector2dF outer_viewport_container_bounds_delta_;
   gfx::Vector2dF inner_viewport_scroll_bounds_delta_;
 
   PropertyTreesCachedData cached_data_;
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_PROPERTY_TREE_H_