cc: Merge LayerTree into the LayerTreeHost.

cc/trees/draw_property_utils.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_DRAW_PROPERTY_UTILS_H_
 #define CC_TREES_DRAW_PROPERTY_UTILS_H_
 
 #include "cc/base/cc_export.h"
 #include "cc/layers/layer_collections.h"
 
 namespace gfx {
 class Rect;
 class Transform;
 class Vector2dF;
 }  // namespace gfx
 
 namespace cc {
 
 class Layer;
 class LayerImpl;
-class LayerTree;
+class LayerTreeHost;
 class RenderSurfaceImpl;
 class EffectTree;
 class TransformTree;
 class PropertyTrees;
 struct EffectNode;
 
 namespace draw_property_utils {
 
 void CC_EXPORT PostConcatSurfaceContentsScale(const EffectNode* effect_node,
                                               gfx::Transform* transform);
@@ skipping 23 matching lines @@
     float device_scale_factor,
     const gfx::Rect& viewport,
     const gfx::Transform& device_transform,
     bool can_render_to_separate_surface,
     PropertyTrees* property_trees,
     LayerImplList* visible_layer_list);
 
 void CC_EXPORT UpdatePropertyTrees(PropertyTrees* property_trees,
                                    bool can_render_to_separate_surface);
 
-void CC_EXPORT FindLayersThatNeedUpdates(LayerTree* layer_tree,
+void CC_EXPORT FindLayersThatNeedUpdates(LayerTreeHost* layer_tree_host,
                                          const PropertyTrees* property_trees,
                                          LayerList* update_layer_list);
 
 void CC_EXPORT ComputeVisibleRects(LayerImpl* root_layer,
                                    PropertyTrees* property_trees,
                                    bool can_render_to_separate_surface,
                                    LayerImplList* visible_layer_list);
 
 gfx::Rect CC_EXPORT
 ComputeLayerVisibleRectDynamic(const PropertyTrees* property_trees,
@@ skipping 55 matching lines @@
 
 void CC_EXPORT
 UpdateElasticOverscroll(PropertyTrees* property_trees,
                         const Layer* overscroll_elasticity_layer,
                         const gfx::Vector2dF& elastic_overscroll);
 
 }  // namespace draw_property_utils
 }  // namespace cc
 
 #endif  // CC_TREES_DRAW_PROPERTY_UTILS_H_