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

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  * Copyright (C) 2015 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:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 305 matching lines @@
     const VisiblePositionInFlatTree& pos = visiblePositionOfHitTestResult(adjustedHitTestResult);
     if (pos.isNotNull()) {
         newSelection = VisibleSelectionInFlatTree(pos);
         newSelection.expandUsingGranularity(WordGranularity);
     }
 
     if (selectInputEventType == SelectInputEventType::Touch) {
         // If node doesn't have text except space, tab or line break, do not
         // select that 'empty' area.
         EphemeralRangeInFlatTree range(newSelection.start(), newSelection.end());
-        const String& str = plainText(range, innerNode->hasEditableStyle() ? TextIteratorEmitsObjectReplacementCharacter : TextIteratorDefaultBehavior);
+        const String& str = plainText(range, hasEditableStyle(*innerNode) ? TextIteratorEmitsObjectReplacementCharacter : TextIteratorDefaultBehavior);
         if (str.isEmpty() || str.simplifyWhiteSpace().containsOnlyWhitespace())
             return;
 
         if (newSelection.rootEditableElement() && pos.deepEquivalent() == VisiblePositionInFlatTree::lastPositionInNode(newSelection.rootEditableElement()).deepEquivalent())
             return;
     }
 
     if (appendTrailingWhitespace == AppendTrailingWhitespace::ShouldAppend && newSelection.isRange())
         newSelection.appendTrailingWhitespace();
 
@@ skipping 178 matching lines @@
     // press and it's not a context menu click.  We do this so when clicking
     // on the selection, the selection goes away.  However, if we are
     // editing, place the caret.
     if (m_mouseDownWasSingleClickInSelection && m_selectionState != SelectionState::ExtendedSelection
         && dragStartPos == event.event().position()
         && selection().isRange()
         && event.event().button() != RightButton) {
         VisibleSelectionInFlatTree newSelection;
         Node* node = event.innerNode();
         bool caretBrowsing = m_frame->settings() && m_frame->settings()->caretBrowsingEnabled();
-        if (node && node->layoutObject() && (caretBrowsing || node->hasEditableStyle())) {
+        if (node && node->layoutObject() && (caretBrowsing || hasEditableStyle(*node))) {
             const VisiblePositionInFlatTree pos = visiblePositionOfHitTestResult(event.hitTestResult());
             newSelection = VisibleSelectionInFlatTree(pos);
         }
 
         setSelectionIfNeeded(selection(), newSelection);
 
         handled = true;
     }
 
     selection().notifyLayoutObjectOfSelectionChange(UserTriggered);
@@ skipping 139 matching lines @@
     return event.event().altKey() && event.isOverLink();
 }
 
 bool isExtendingSelection(const MouseEventWithHitTestResults& event)
 {
     bool isMouseDownOnLinkOrImage = event.isOverLink() || event.hitTestResult().image();
     return event.event().shiftKey() && !isMouseDownOnLinkOrImage;
 }
 
 } // namespace blink