Perform BSP polygon splitting and orientation selection in a single step.

cc/output/bsp_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_OUTPUT_BSP_TREE_H_
 #define CC_OUTPUT_BSP_TREE_H_
 
 #include <stddef.h>
 
 #include <deque>
@@ skipping 83 matching lines @@
     } else {
       WalkInOrderVisitNodes<ActionHandlerType>(action_handler,
                                                node,
                                                node->front_child.get(),
                                                node->back_child.get(),
                                                node->coplanars_back,
                                                node->coplanars_front);
     }
   }
 
-  // Returns whether or not nodeA is on one or the other side of nodeB,
-  // coplanar, or whether it crosses nodeB's plane and needs to be split
-  static BspCompareResult GetNodePositionRelative(const DrawPolygon& node_a,
-                                                  const DrawPolygon& node_b);
   // Returns whether or not our viewer is in front of or behind the plane
   // defined by this polygon/node
   static BspCompareResult GetCameraPositionRelative(const DrawPolygon& node);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_BSP_TREE_H_