[Editing][DOM][CodeHealth] Make Node::hasEditableStyle global functions.

third_party/WebKit/Source/core/editing/FrameSelection.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 Apple 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 777 matching lines @@
     // Get to the <iframe> or <frame> (or even <object>) element in the parent frame.
     // FIXME: Doesn't work for OOPI.
     HTMLFrameOwnerElement* ownerElement = m_frame->deprecatedLocalOwner();
     if (!ownerElement)
         return;
     ContainerNode* ownerElementParent = ownerElement->parentNode();
     if (!ownerElementParent)
         return;
 
     // This method's purpose is it to make it easier to select iframes (in order to delete them).  Don't do anything if the iframe isn't deletable.
-    if (!ownerElementParent->hasEditableStyle())
+    if (!blink::hasEditableStyle(*ownerElementParent))
         return;
 
     // Create compute positions before and after the element.
     unsigned ownerElementNodeIndex = ownerElement->nodeIndex();
     VisiblePosition beforeOwnerElement = createVisiblePosition(Position(ownerElementParent, ownerElementNodeIndex));
     VisiblePosition afterOwnerElement = createVisiblePosition(Position(ownerElementParent, ownerElementNodeIndex + 1), VP_UPSTREAM_IF_POSSIBLE);
 
     // Focus on the parent frame, and then select from before this element to after.
     VisibleSelection newSelection(beforeOwnerElement, afterOwnerElement);
     page->focusController().setFocusedFrame(parent);
@@ skipping 369 matching lines @@
     }
 }
 
 void FrameSelection::setSelectionFromNone()
 {
     // Put a caret inside the body if the entire frame is editable (either the
     // entire WebView is editable or designMode is on for this document).
 
     Document* document = m_frame->document();
     bool caretBrowsing = m_frame->settings() && m_frame->settings()->caretBrowsingEnabled();
-    if (!isNone() || !(document->hasEditableStyle() || caretBrowsing))
+    if (!isNone() || !(blink::hasEditableStyle(*document) || caretBrowsing))
         return;
 
     Element* documentElement = document->documentElement();
     if (!documentElement)
         return;
     if (HTMLBodyElement* body = Traversal<HTMLBodyElement>::firstChild(*documentElement))
         setSelection(VisibleSelection(firstPositionInOrBeforeNode(body), TextAffinity::Downstream));
 }
 
 // TODO(yoichio): We should have LocalFrame having FrameCaret,
@@ skipping 182 matching lines @@
 
 void showTree(const blink::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
     else
         fprintf(stderr, "Cannot showTree for (nil) FrameSelection.\n");
 }
 
 #endif