cc : Compute visible rects dynamically (1)

cc/trees/draw_property_utils.h

Index: cc/trees/draw_property_utils.h
diff --git a/cc/trees/draw_property_utils.h b/cc/trees/draw_property_utils.h
index b041a6d7b93c6172619d4b9d5589e4adc34c1b87..7c4e83c99109c0096c3f04dfa51ac3b4d86c5919 100644
--- a/cc/trees/draw_property_utils.h
+++ b/cc/trees/draw_property_utils.h
@@ -59,6 +59,7 @@ void CC_EXPORT BuildPropertyTreesAndComputeVisibleRects(
     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);
 
@@ -78,8 +79,13 @@ ComputeVisibleRectsForTesting(PropertyTrees* property_trees,
 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);