Add |WebTextDirection toWebTextDirection(TextDirection)|.

Source/web/WebViewImpl.cpp

 /*
  * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 2412 matching lines @@
 }
 
 bool WebViewImpl::selectionTextDirection(WebTextDirection& start, WebTextDirection& end) const
 {
     const LocalFrame* frame = toLocalFrame(focusedWebCoreFrame());
     if (!frame)
         return false;
     FrameSelection& selection = frame->selection();
     if (!selection.toNormalizedRange())
         return false;
-    start = selection.start().primaryDirection() == RTL ? WebTextDirectionRightToLeft : WebTextDirectionLeftToRight;
-    end = selection.end().primaryDirection() == RTL ? WebTextDirectionRightToLeft : WebTextDirectionLeftToRight;
+    start = toWebTextDirection(selection.start().primaryDirection());
+    end = toWebTextDirection(selection.end().primaryDirection());
     return true;
 }
 
 bool WebViewImpl::isSelectionAnchorFirst() const
 {
     if (const LocalFrame* frame = toLocalFrame(focusedWebCoreFrame()))
         return frame->selection().selection().isBaseFirst();
     return false;
 }
 
@@ skipping 1813 matching lines @@
     const PageScaleConstraints& constraints = m_pageScaleConstraintsSet.pageDefinedConstraints();
 
     if (!mainFrameImpl() || !mainFrameImpl()->frameView())
         return false;
 
     return mainFrameImpl()->frameView()->layoutSize().width() == m_size.width
         || (constraints.minimumScale == constraints.maximumScale && constraints.minimumScale != -1);
 }
 
 } // namespace blink