[Editing] Store |CommandSource| in |CompositeEditCommand|

third_party/WebKit/Source/core/editing/spellcheck/SpellChecker.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 827 matching lines @@
   if (currentDocument != frame().document())
     return;
 
   // TODO(xiaochengh): The use of updateStyleAndLayoutIgnorePendingStylesheets
   // needs to be audited.  See http://crbug.com/590369 for more details.
   frame().document()->updateStyleAndLayoutIgnorePendingStylesheets();
 
   if (cancel)
     return;
   frame().editor().replaceSelectionWithText(
-      text, false, false, InputEvent::InputType::InsertReplacementText);
+      CommandSource::MenuOrKeyBinding, text, false, false,
+      InputEvent::InputType::InsertReplacementText);
 }
 
 static bool shouldCheckOldSelection(const Position& oldSelectionStart) {
   if (!oldSelectionStart.isConnected())
     return false;
   if (isPositionInTextField(oldSelectionStart))
     return false;
   if (isPositionInTextArea(oldSelectionStart))
     return true;
 
@@ skipping 295 matching lines @@
         startOfNextParagraph(createVisiblePosition(paragraphEnd));
     paragraphStart = newParagraphStart.toParentAnchoredPosition();
     paragraphEnd = endOfParagraph(newParagraphStart).toParentAnchoredPosition();
     firstIteration = false;
     totalLengthProcessed += currentLength;
   }
   return std::make_pair(firstFoundItem, firstFoundOffset);
 }
 
 }  // namespace blink