Use tighter typing in editing: CompositeEditCommand

Source/core/editing/ReplaceSelectionCommand.cpp

Index: Source/core/editing/ReplaceSelectionCommand.cpp
diff --git a/Source/core/editing/ReplaceSelectionCommand.cpp b/Source/core/editing/ReplaceSelectionCommand.cpp
index 73ead8cbff608831865bdf50e0ba2df579f5f5ed..497725d39b57fc208c5bf0fed2d5f8b1f4cd2da3 100644
--- a/Source/core/editing/ReplaceSelectionCommand.cpp
+++ b/Source/core/editing/ReplaceSelectionCommand.cpp
@@ -49,6 +49,7 @@
 #include "core/events/BeforeTextInsertedEvent.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
+#include "core/html/HTMLBRElement.h"
 #include "core/html/HTMLElement.h"
 #include "core/html/HTMLInputElement.h"
 #include "core/rendering/RenderObject.h"
@@ -835,7 +836,7 @@ void ReplaceSelectionCommand::mergeEndIfNeeded()
     // Merging forward could result in deleting the destination anchor node.
     // To avoid this, we add a placeholder node before the start of the paragraph.
     if (endOfParagraph(startOfParagraphToMove) == destination) {
-        RefPtrWillBeRawPtr<Node> placeholder = createBreakElement(document());
+        RefPtrWillBeRawPtr<HTMLBRElement> placeholder = createBreakElement(document());
         insertNodeBefore(placeholder, startOfParagraphToMove.deepEquivalent().deprecatedNode());
         destination = VisiblePosition(positionBeforeNode(placeholder.get()));
     }