Make SpellChecker::respondToChangedSelection() to take Position instead of VisibleSelection

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

Index: third_party/WebKit/Source/core/editing/FrameSelection.cpp
diff --git a/third_party/WebKit/Source/core/editing/FrameSelection.cpp b/third_party/WebKit/Source/core/editing/FrameSelection.cpp
index 69a2215ddc23d7a23cd456ef65a4f40d88ca2649..ee7d1154c98ef0cbcea3cb84f8cea8c43c99daae 100644
--- a/third_party/WebKit/Source/core/editing/FrameSelection.cpp
+++ b/third_party/WebKit/Source/core/editing/FrameSelection.cpp
@@ -304,7 +304,7 @@ void FrameSelection::setSelectionAlgorithm(
 
   const VisibleSelectionTemplate<Strategy> oldSelection =
       visibleSelection<Strategy>();
-  const VisibleSelection oldSelectionInDOMTree = selection();
+  const Position& oldSelectionStart = selection().start();
 
   m_selectionEditor->setVisibleSelection(s, options);
   m_frameCaret->setCaretRectNeedsUpdate();
@@ -350,7 +350,7 @@ void FrameSelection::setSelectionAlgorithm(
     m_frame->inputMethodController().cancelCompositionIfSelectionIsInvalid();
     return;
   }
-  m_frame->editor().respondToChangedSelection(oldSelectionInDOMTree, options);
+  m_frame->editor().respondToChangedSelection(oldSelectionStart, options);
   if (userTriggered == UserTriggered) {
     ScrollAlignment alignment;