Use tighter typing in editing: PlainTextRange / ReplaceNodeWithSpanCommand

Source/core/editing/PlainTextRange.h

Index: Source/core/editing/PlainTextRange.h
diff --git a/Source/core/editing/PlainTextRange.h b/Source/core/editing/PlainTextRange.h
index e2379622df6add088eae4d7af66518f6e0828729..e9ad645c769da6f4d2e2037c20cd828148225fcc 100644
--- a/Source/core/editing/PlainTextRange.h
+++ b/Source/core/editing/PlainTextRange.h
@@ -33,7 +33,6 @@
 namespace blink {
 
 class ContainerNode;
-class Node;
 class Range;
 
 class PlainTextRange {
@@ -52,7 +51,7 @@ public:
     PassRefPtrWillBeRawPtr<Range> createRange(const ContainerNode& scope) const;
     PassRefPtrWillBeRawPtr<Range> createRangeForSelection(const ContainerNode& scope) const;
 
-    static PlainTextRange create(const Node& scope, const Range&);
+    static PlainTextRange create(const ContainerNode& scope, const Range&);
 
 private:
     PlainTextRange& operator=(const PlainTextRange&)  WTF_DELETED_FUNCTION;