Get rid of AX_LINE_BREAKS attribute to improve performance.

ui/accessibility/ax_tree_combiner.cc

Index: ui/accessibility/ax_tree_combiner.cc
diff --git a/ui/accessibility/ax_tree_combiner.cc b/ui/accessibility/ax_tree_combiner.cc
index 0731802512fb2fc79f25812306f9e01fa96c261c..736cc583a157e77159555148582a4b4201a1518f 100644
--- a/ui/accessibility/ax_tree_combiner.cc
+++ b/ui/accessibility/ax_tree_combiner.cc
@@ -82,11 +82,11 @@ bool IsNodeIdIntListAttribute(AXIntListAttribute attr) {
     // add a new attribute without explicitly considering whether it's
     // a node id attribute or not.
     case AX_INT_LIST_ATTRIBUTE_NONE:
-    case AX_ATTR_LINE_BREAKS:
     case AX_ATTR_MARKER_TYPES:
     case AX_ATTR_MARKER_STARTS:
     case AX_ATTR_MARKER_ENDS:
     case AX_ATTR_CHARACTER_OFFSETS:
+    case AX_ATTR_CACHED_LINE_STARTS:
     case AX_ATTR_WORD_STARTS:
     case AX_ATTR_WORD_ENDS:
       return false;