Add ScrollDirectionPhysical enum in Scroll types.

Source/core/editing/EditorCommand.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Igalia S.L.
  *
  * 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.
@@ skipping 981 matching lines @@
     return frame.eventHandler().bubblingScroll(ScrollBlockDirectionBackward, ScrollByPage);
 }
 
 static bool executeScrollPageForward(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
     return frame.eventHandler().bubblingScroll(ScrollBlockDirectionForward, ScrollByPage);
 }
 
 static bool executeScrollLineUp(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    return frame.eventHandler().bubblingScroll(ScrollUp, ScrollByLine);
+    return frame.eventHandler().bubblingScroll(ScrollUpIgnoringWritingMode, ScrollByLine);
 }
 
 static bool executeScrollLineDown(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
-    return frame.eventHandler().bubblingScroll(ScrollDown, ScrollByLine);
+    return frame.eventHandler().bubblingScroll(ScrollDownIgnoringWritingMode, ScrollByLine);
 }
 
 static bool executeScrollToBeginningOfDocument(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
     return frame.eventHandler().bubblingScroll(ScrollBlockDirectionBackward, ScrollByDocument);
 }
 
 static bool executeScrollToEndOfDocument(LocalFrame& frame, Event*, EditorCommandSource, const String&)
 {
     return frame.eventHandler().bubblingScroll(ScrollBlockDirectionForward, ScrollByDocument);
@@ skipping 674 matching lines @@
         spellChecker().showSpellingGuessPanel();
         return true;
     }
     return command(commandName).execute();
 }
 
 bool Editor::executeCommand(const String& commandName, const String& value)
 {
     // moveToBeginningOfDocument and moveToEndfDocument are only handled by WebKit for editable nodes.
     if (!canEdit() && commandName == "moveToBeginningOfDocument")
-        return frame().eventHandler().bubblingScroll(ScrollUp, ScrollByDocument);
+        return frame().eventHandler().bubblingScroll(ScrollUpIgnoringWritingMode, ScrollByDocument);
 
     if (!canEdit() && commandName == "moveToEndOfDocument")
-        return frame().eventHandler().bubblingScroll(ScrollDown, ScrollByDocument);
+        return frame().eventHandler().bubblingScroll(ScrollDownIgnoringWritingMode, ScrollByDocument);
 
     if (commandName == "showGuessPanel") {
         spellChecker().showSpellingGuessPanel();
         return true;
     }
 
     return command(commandName).execute(value);
 }
 
 Editor::Command::Command()
@@ skipping 71 matching lines @@
 {
     return m_command && m_command->isTextInsertion;
 }
 
 int Editor::Command::idForHistogram() const
 {
     return isSupported() ? m_command->idForUserMetrics : 0;
 }
 
 } // namespace blink