cc: Remove usage of Layer draw_transform

cc/trees/draw_property_utils.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/draw_property_utils.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 799 matching lines @@
       xform.FlattenTo2d();
     xform.Translate(layer->offset_to_transform_parent().x(),
                     layer->offset_to_transform_parent().y());
   } else {
     // Surfaces need to apply their sublayer scale.
     xform.Scale(node->data.sublayer_scale.x(), node->data.sublayer_scale.y());
   }
   return xform;
 }
 
-gfx::Transform DrawTransform(const Layer* layer, const TransformTree& tree) {
-  return DrawTransformInternal(layer, tree.Node(layer->transform_tree_index()));
-}
-
 gfx::Transform DrawTransform(const LayerImpl* layer,
                              const TransformTree& tree) {
   return DrawTransformInternal(layer, tree.Node(layer->transform_tree_index()));

[ajuma, 2016/04/04 22:15:59]

Since we no longer need templating, we don't need a separate
DrawTransformInternal anymore.

[sunxd, 2016/04/05 14:26:47]

Done.

 }
 
 static void SetSurfaceDrawTransform(const TransformTree& tree,
                                     RenderSurfaceImpl* render_surface) {
   const TransformNode* node = tree.Node(render_surface->TransformTreeIndex());
   // The draw transform of root render surface is identity tranform.
   if (node->id == 1) {
     render_surface->SetDrawTransform(gfx::Transform());
     return;
   }
@@ skipping 339 matching lines @@
 void UpdateElasticOverscroll(PropertyTrees* property_trees,
                              const Layer* overscroll_elasticity_layer,
                              const gfx::Vector2dF& elastic_overscroll) {
   UpdateElasticOverscrollInternal(property_trees, overscroll_elasticity_layer,
                                   elastic_overscroll);
 }
 
 }  // namespace draw_property_utils
 
 }  // namespace cc