[Editing] Store |CommandSource| in |CompositeEditCommand|

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

Index: third_party/WebKit/Source/core/editing/commands/TypingCommand.h
diff --git a/third_party/WebKit/Source/core/editing/commands/TypingCommand.h b/third_party/WebKit/Source/core/editing/commands/TypingCommand.h
index a21fa5177dcd6d12499e2e05e337499d259e7812..2dd8ee3158a23432da62f7d87525205718f92a10 100644
--- a/third_party/WebKit/Source/core/editing/commands/TypingCommand.h
+++ b/third_party/WebKit/Source/core/editing/commands/TypingCommand.h
@@ -58,26 +58,30 @@ class CORE_EXPORT TypingCommand final : public CompositeEditCommand {
   };
   typedef unsigned Options;
 
-  static void deleteSelection(Document&, Options = 0);
+  static void deleteSelection(Document&, CommandSource, Options = 0);
   static void deleteKeyPressed(Document&,
+                               CommandSource,
                                Options,
                                TextGranularity = CharacterGranularity);
   static void forwardDeleteKeyPressed(Document&,
+                                      CommandSource,
                                       EditingState*,
                                       Options = 0,
                                       TextGranularity = CharacterGranularity);
   static void insertText(Document&,
+                         CommandSource,
                          const String&,
                          Options,
                          TextCompositionType = TextCompositionNone);
   static void insertText(Document&,
+                         CommandSource,
                          const String&,
                          const VisibleSelection&,
                          Options,
                          TextCompositionType = TextCompositionNone);
-  static bool insertLineBreak(Document&);
-  static bool insertParagraphSeparator(Document&);
-  static bool insertParagraphSeparatorInQuotedContent(Document&);
+  static bool insertLineBreak(Document&, CommandSource);
+  static bool insertParagraphSeparator(Document&, CommandSource);
+  static bool insertParagraphSeparatorInQuotedContent(Document&, CommandSource);
   static void closeTyping(LocalFrame*);
 
   void insertText(const String& text, bool selectInsertedText, EditingState*);
@@ -103,24 +107,27 @@ class CORE_EXPORT TypingCommand final : public CompositeEditCommand {
  private:
   static TypingCommand* create(
       Document& document,
+      CommandSource source,
       ETypingCommand command,
       const String& text = "",
       Options options = 0,
       TextGranularity granularity = CharacterGranularity) {
-    return new TypingCommand(document, command, text, options, granularity,
-                             TextCompositionNone);
+    return new TypingCommand(document, source, command, text, options,
+                             granularity, TextCompositionNone);
   }
 
   static TypingCommand* create(Document& document,
+                               CommandSource source,
                                ETypingCommand command,
                                const String& text,
                                Options options,
                                TextCompositionType compositionType) {
-    return new TypingCommand(document, command, text, options,
+    return new TypingCommand(document, source, command, text, options,
                              CharacterGranularity, compositionType);
   }
 
   TypingCommand(Document&,
+                CommandSource,
                 ETypingCommand,
                 const String& text,
                 Options,