[Editing] Store |CommandSource| in |CompositeEditCommand|

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

Index: third_party/WebKit/Source/core/editing/commands/ApplyStyleCommand.h
diff --git a/third_party/WebKit/Source/core/editing/commands/ApplyStyleCommand.h b/third_party/WebKit/Source/core/editing/commands/ApplyStyleCommand.h
index a2ba527f516dfbb5e7e325a5b18f8752aaa144b2..2d455c81c7ab2cdc0c70f157e15e16b00344d116 100644
--- a/third_party/WebKit/Source/core/editing/commands/ApplyStyleCommand.h
+++ b/third_party/WebKit/Source/core/editing/commands/ApplyStyleCommand.h
@@ -46,26 +46,31 @@ class ApplyStyleCommand final : public CompositeEditCommand {
   typedef bool (*IsInlineElementToRemoveFunction)(const Element*);
 
   static ApplyStyleCommand* create(Document& document,
+                                   CommandSource source,
                                    const EditingStyle* style,
                                    InputEvent::InputType inputType,
                                    EPropertyLevel level = PropertyDefault) {
-    return new ApplyStyleCommand(document, style, inputType, level);
+    return new ApplyStyleCommand(document, source, style, inputType, level);
   }
   static ApplyStyleCommand* create(Document& document,
+                                   CommandSource source,
                                    const EditingStyle* style,
                                    const Position& start,
                                    const Position& end) {
-    return new ApplyStyleCommand(document, style, start, end);
+    return new ApplyStyleCommand(document, source, style, start, end);
   }
-  static ApplyStyleCommand* create(Element* element, bool removeOnly) {
-    return new ApplyStyleCommand(element, removeOnly);
+  static ApplyStyleCommand* create(CommandSource source,
+                                   Element* element,
+                                   bool removeOnly) {
+    return new ApplyStyleCommand(source, element, removeOnly);
   }
   static ApplyStyleCommand* create(
       Document& document,
+      CommandSource source,
       const EditingStyle* style,
       IsInlineElementToRemoveFunction isInlineElementToRemoveFunction,
       InputEvent::InputType inputType) {
-    return new ApplyStyleCommand(document, style,
+    return new ApplyStyleCommand(document, source, style,
                                  isInlineElementToRemoveFunction, inputType);
   }
 
@@ -73,15 +78,18 @@ class ApplyStyleCommand final : public CompositeEditCommand {
 
  private:
   ApplyStyleCommand(Document&,
+                    CommandSource,
                     const EditingStyle*,
                     InputEvent::InputType,
                     EPropertyLevel);
   ApplyStyleCommand(Document&,
+                    CommandSource,
                     const EditingStyle*,
                     const Position& start,
                     const Position& end);
-  ApplyStyleCommand(Element*, bool removeOnly);
+  ApplyStyleCommand(CommandSource, Element*, bool removeOnly);
   ApplyStyleCommand(Document&,
+                    CommandSource,
                     const EditingStyle*,
                     bool (*isInlineElementToRemove)(const Element*),
                     InputEvent::InputType);