cc: Directly use property trees to calculate clip rect

cc/trees/layer_tree_host_common.h

Index: cc/trees/layer_tree_host_common.h
diff --git a/cc/trees/layer_tree_host_common.h b/cc/trees/layer_tree_host_common.h
index 1a32f3f97ff776fd793dcf21701aed052de8b681..c000e279d70b924f8f2e8ccb079696e26e977fd3 100644
--- a/cc/trees/layer_tree_host_common.h
+++ b/cc/trees/layer_tree_host_common.h
@@ -81,6 +81,7 @@ class CC_EXPORT LayerTreeHostCommon {
         bool layers_always_allowed_lcd_text,
         bool can_render_to_separate_surface,
         bool can_adjust_raster_scales,
+        bool verify_clip_tree_calculations,
         LayerImplList* render_surface_layer_list,
         PropertyTrees* property_trees);
 
@@ -99,6 +100,7 @@ class CC_EXPORT LayerTreeHostCommon {
     bool layers_always_allowed_lcd_text;
     bool can_render_to_separate_surface;
     bool can_adjust_raster_scales;
+    bool verify_clip_tree_calculations;
     LayerImplList* render_surface_layer_list;
     PropertyTrees* property_trees;
   };