Invalidate caret during paint invalidation

third_party/WebKit/Source/core/editing/EditingUtilities.cpp

Index: third_party/WebKit/Source/core/editing/EditingUtilities.cpp
diff --git a/third_party/WebKit/Source/core/editing/EditingUtilities.cpp b/third_party/WebKit/Source/core/editing/EditingUtilities.cpp
index 3ca0cfd355c6d80e77759bba54e4ae7b9ded7049..73f1e72302a9aff5c715f94c7e0fe592d361548d 100644
--- a/third_party/WebKit/Source/core/editing/EditingUtilities.cpp
+++ b/third_party/WebKit/Source/core/editing/EditingUtilities.cpp
@@ -379,9 +379,9 @@ bool isEditablePosition(const Position& position) {
   DCHECK(node->document().isActive());
   if (node->document().lifecycle().state() >=
       DocumentLifecycle::InStyleRecalc) {
-    // TODO(yosin): Once we change |LayoutObject::adjustStyleDifference()|
-    // not to call |FrameSelection::hasCaret()|, we should not assume
-    // calling |isEditablePosition()| in |InStyleRecalc| is safe.
+    // TODO(yosin): Update the condition and DCHECK here given that
+    // https://codereview.chromium.org/2665823002/ avoided this function from
+    // being called during InStyleRecalc.
   } else {
     DCHECK(!needsLayoutTreeUpdate(position)) << position;
   }