Rename renderer to layoutObject in core/editing.

Source/core/editing/InsertTextCommand.cpp

Index: Source/core/editing/InsertTextCommand.cpp
diff --git a/Source/core/editing/InsertTextCommand.cpp b/Source/core/editing/InsertTextCommand.cpp
index d029560703e806ee8f2e3d599f803629afa137d8..f9bf3269b42888f056e7c5f498518642b459aacd 100644
--- a/Source/core/editing/InsertTextCommand.cpp
+++ b/Source/core/editing/InsertTextCommand.cpp
@@ -134,7 +134,7 @@ void InsertTextCommand::doApply()
         bool endOfSelectionWasAtStartOfBlock = isStartOfBlock(endingSelection().visibleEnd());
         deleteSelection(false, true, false, false);
         // deleteSelection eventually makes a new endingSelection out of a Position. If that Position doesn't have
-        // a renderer (e.g. it is on a <frameset> in the DOM), the VisibleSelection cannot be canonicalized to
+        // a layoutObject (e.g. it is on a <frameset> in the DOM), the VisibleSelection cannot be canonicalized to
         // anything other than NoSelection. The rest of this function requires a real endingSelection, so bail out.
         if (endingSelection().isNone())
             return;