Expand FrameSeleciton::start() to increase chances of hoisting update layout

third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp

Index: third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp
diff --git a/third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp b/third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp
index ed065a791a6325329416906ea351498a79fb2d50..32174b63eecb817e2305c8f5980e63edaa9968c7 100644
--- a/third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp
+++ b/third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp
@@ -1049,7 +1049,12 @@ bool SpellChecker::selectionStartHasMarkerFor(
     DocumentMarker::MarkerType markerType,
     int from,
     int length) const {
-  Node* node = findFirstMarkable(frame().selection().start().anchorNode());
+  Node* node =
+      findFirstMarkable(frame()
+                            .selection()
+                            .computeVisibleSelectionInDOMTreeDeprecated()
+                            .start()
+                            .anchorNode());
   if (!node)
     return false;