cc : Compute visible rects dynamically (1)

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 41 matching lines @@
     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,
+    bool verify_visible_rect_calculations,
     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,
                                          const TransformTree& transform_tree,
                                          const EffectTree& effect_tree,
                                          LayerList* update_layer_list);
 
 void CC_EXPORT
 ComputeVisibleRectsForTesting(PropertyTrees* property_trees,
                               bool can_render_to_separate_surface,
                               LayerList* visible_layer_list);
 
 void CC_EXPORT ComputeVisibleRects(LayerImpl* root_layer,
                                    PropertyTrees* property_trees,
                                    bool can_render_to_separate_surface,
+                                   bool verify_visible_rect_calculations,
                                    LayerImplList* visible_layer_list);
 
+gfx::Rect CC_EXPORT
+ComputeLayerVisibleRectDynamic(const PropertyTrees* property_trees,
+                               const LayerImpl* layer);
+
 void CC_EXPORT ComputeLayerDrawProperties(LayerImpl* layer,
                                           const PropertyTrees* property_trees);
 
 void CC_EXPORT ComputeMaskDrawProperties(LayerImpl* mask_layer,
                                          const PropertyTrees* property_trees);
 
 void CC_EXPORT ComputeSurfaceDrawProperties(const PropertyTrees* property_trees,
                                             RenderSurfaceImpl* render_surface);
 
 bool CC_EXPORT LayerShouldBeSkipped(LayerImpl* layer,
@@ skipping 44 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_