[WIP] Change DocumentMarkerController::add*Marker() methods to take an EphemeralRange

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 0439b7ca87ecea7c313fdd45b6764b05849c8ba2..e68a6e20f988c436a186190c6ff4a5cc7b6c2fab 100644
--- a/third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp
+++ b/third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp
@@ -302,8 +302,7 @@ void SpellChecker::advanceToNextMisspelling(bool startBeforeSelection) {
                                          .build());
     frame().selection().revealSelection();
     spellCheckerClient().updateSpellingUIWithMisspelledWord(misspelledWord);
-    frame().document()->markers().addSpellingMarker(
-        misspellingRange.startPosition(), misspellingRange.endPosition());
+    frame().document()->markers().addSpellingMarker(misspellingRange);
   }
 }
 
@@ -543,13 +542,10 @@ static void addMarker(Document* document,
 
   DCHECK(type == DocumentMarker::Grammar || type == DocumentMarker::Spelling)
       << type;
-  if (type == DocumentMarker::Grammar) {
-    document->markers().addGrammarMarker(
-        rangeToMark.startPosition(), rangeToMark.endPosition(), description);
-  } else {
-    document->markers().addSpellingMarker(
-        rangeToMark.startPosition(), rangeToMark.endPosition(), description);
-  }
+  if (type == DocumentMarker::Grammar)
+    document->markers().addGrammarMarker(rangeToMark, description);
+  else
+    document->markers().addSpellingMarker(rangeToMark, description);
 }
 
 void SpellChecker::markAndReplaceFor(