[Editing] Store |CommandSource| in |CompositeEditCommand|

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

Index: third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.h
diff --git a/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.h b/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.h
index 38fde66e32b7bcd58c4e80e2fcf4795095dd2576..dcf7207e7718ad38ae21c7e7e0f46e7c87407e11 100644
--- a/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.h
+++ b/third_party/WebKit/Source/core/editing/commands/ReplaceSelectionCommand.h
@@ -50,10 +50,12 @@ class CORE_EXPORT ReplaceSelectionCommand final : public CompositeEditCommand {
 
   static ReplaceSelectionCommand* create(
       Document& document,
+      CommandSource source,
       DocumentFragment* fragment,
       CommandOptions options,
       InputEvent::InputType inputType = InputEvent::InputType::None) {
-    return new ReplaceSelectionCommand(document, fragment, options, inputType);
+    return new ReplaceSelectionCommand(document, source, fragment, options,
+                                       inputType);
   }
 
   EphemeralRange insertedRange() const;
@@ -62,6 +64,7 @@ class CORE_EXPORT ReplaceSelectionCommand final : public CompositeEditCommand {
 
  private:
   ReplaceSelectionCommand(Document&,
+                          CommandSource,
                           DocumentFragment*,
                           CommandOptions,
                           InputEvent::InputType);