Move VisibleSelection::positionRespectingEditingBoundary() to EditingUtilities.cpp

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 179 matching lines @@
 
 void SelectionController::updateSelectionForMouseDrag(const HitTestResult& hitTestResult, Node* mousePressNode, const LayoutPoint& dragStartPos, const IntPoint& lastKnownMousePosition)
 {
     if (!m_mouseDownMayStartSelect)
         return;
 
     Node* target = hitTestResult.innerNode();
     if (!target)
         return;
 
-    PositionWithAffinity rawTargetPosition = selection().selection().positionRespectingEditingBoundary(hitTestResult.localPoint(), target);
+    const PositionWithAffinity& rawTargetPosition = positionRespectingEditingBoundary(selection().selection().start(), hitTestResult.localPoint(), target);
     VisiblePositionInFlatTree targetPosition = createVisiblePosition(fromPositionInDOMTree<EditingInFlatTreeStrategy>(rawTargetPosition));
     // Don't modify the selection if we're not on a node.
     if (targetPosition.isNull())
         return;
 
     // Restart the selection if this is the first mouse move. This work is usually
     // done in handleMousePressEvent, but not if the mouse press was on an existing selection.
     VisibleSelectionInFlatTree newSelection = selection().visibleSelection<EditingInFlatTreeStrategy>();
 
     // Special case to limit selection to the containing block for SVG text.
@@ skipping 418 matching lines @@
 {
     return m_frame->selection();
 }
 
 bool isLinkSelection(const MouseEventWithHitTestResults& event)
 {
     return event.event().altKey() && event.isOverLink();
 }
 
 } // namespace blink