cc: Remove support for disabling non-root render surfaces.

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"
 
@@ skipping 16 matching lines @@
 
 namespace draw_property_utils {
 
 void CC_EXPORT PostConcatSurfaceContentsScale(const EffectNode* effect_node,
                                               gfx::Transform* transform);
 
 void CC_EXPORT ConcatInverseSurfaceContentsScale(const EffectNode* effect_node,
                                                  gfx::Transform* transform);
 // Computes combined clips for every node in |clip_tree|. This function requires
 // that |transform_tree| has been updated via |ComputeTransforms|.
-void CC_EXPORT ComputeClips(PropertyTrees* property_trees,
-                            bool non_root_surfaces_enabled);
+void CC_EXPORT ComputeClips(PropertyTrees* property_trees);
 
 // Computes combined (screen space) transforms for every node in the transform
 // tree. This must be done prior to calling |ComputeClips|.
 void CC_EXPORT ComputeTransforms(TransformTree* transform_tree);
 
 // Computes screen space opacity for every node in the opacity tree.
 void CC_EXPORT ComputeEffects(EffectTree* effect_tree);
 
 void CC_EXPORT BuildPropertyTreesAndComputeVisibleRects(
     LayerImpl* root_layer,
     const LayerImpl* page_scale_layer,
     const LayerImpl* inner_viewport_scroll_layer,
     const LayerImpl* outer_viewport_scroll_layer,
     const LayerImpl* overscroll_elasticity_layer,
     const gfx::Vector2dF& elastic_overscroll,
     float page_scale_factor,
     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 UpdatePropertyTrees(PropertyTrees* property_trees);
 
 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,
                                const LayerImpl* layer);
 void CC_EXPORT
 VerifyVisibleRectsCalculations(const LayerImplList& layer_list,
                                const PropertyTrees* property_trees);
 
 void CC_EXPORT ComputeLayerDrawProperties(LayerImpl* layer,
@@ skipping 49 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_