[Editing] Store |CommandSource| in |CompositeEditCommand|

third_party/WebKit/Source/core/editing/commands/SplitTextNodeContainingElementCommand.h

Index: third_party/WebKit/Source/core/editing/commands/SplitTextNodeContainingElementCommand.h
diff --git a/third_party/WebKit/Source/core/editing/commands/SplitTextNodeContainingElementCommand.h b/third_party/WebKit/Source/core/editing/commands/SplitTextNodeContainingElementCommand.h
index 6c6562f8acc009635f81a028a44e7d2cf4583c53..6cb9787d7d541e3f782db1f80088e85e68364ff5 100644
--- a/third_party/WebKit/Source/core/editing/commands/SplitTextNodeContainingElementCommand.h
+++ b/third_party/WebKit/Source/core/editing/commands/SplitTextNodeContainingElementCommand.h
@@ -33,14 +33,16 @@ namespace blink {
 class SplitTextNodeContainingElementCommand final
     : public CompositeEditCommand {
  public:
-  static SplitTextNodeContainingElementCommand* create(Text* node, int offset) {
-    return new SplitTextNodeContainingElementCommand(node, offset);
+  static SplitTextNodeContainingElementCommand* create(CommandSource source,
+                                                       Text* node,
+                                                       int offset) {
+    return new SplitTextNodeContainingElementCommand(source, node, offset);
   }
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
-  SplitTextNodeContainingElementCommand(Text*, int offset);
+  SplitTextNodeContainingElementCommand(CommandSource, Text*, int offset);
 
   void doApply(EditingState*) override;