ASSERT -> DCHECK in core/editing.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 68 matching lines @@
         return VisibleSelectionInFlatTree(visibleStart, visibleExtent);
     }
     const VisiblePositionInFlatTree visibleEnd = createVisiblePosition(end, selectionType == SelectionType::RangeSelection ? TextAffinity::Upstream : affinity);
     return VisibleSelectionInFlatTree(visibleStart, visibleEnd);
 }
 
 void PendingSelection::commit(LayoutView& layoutView)
 {
     if (!hasPendingSelection())
         return;
-    ASSERT(!layoutView.needsLayout());
+    DCHECK(!layoutView.needsLayout());
     m_hasPendingSelection = false;
 
     const VisibleSelectionInFlatTree& originalSelection = m_frameSelection->visibleSelection<EditingInFlatTreeStrategy>();
 
     // Skip if pending VisibilePositions became invalid before we reach here.
     if (!isSelectionInDocument(originalSelection, layoutView.document()))
         return;
 
     // Construct a new VisibleSolution, since visibleSelection() is not necessarily
     // valid, and the following steps assume a valid selection.
@@ skipping 23 matching lines @@
 
     // We can get into a state where the selection endpoints map to the same
     // |VisiblePosition| when a selection is deleted because we don't yet notify
     // the |FrameSelection| of text removal.
     if (startPos.isNull() || endPos.isNull() || selection.visibleStart().deepEquivalent() == selection.visibleEnd().deepEquivalent())
         return;
     LayoutObject* startLayoutObject = startPos.anchorNode()->layoutObject();
     LayoutObject* endLayoutObject = endPos.anchorNode()->layoutObject();
     if (!startLayoutObject || !endLayoutObject)
         return;
-    ASSERT(layoutView == startLayoutObject->view() && layoutView == endLayoutObject->view());
+    DCHECK(layoutView == startLayoutObject->view());
+    DCHECK(layoutView == endLayoutObject->view());
     layoutView.setSelection(startLayoutObject, startPos.computeEditingOffset(), endLayoutObject, endPos.computeEditingOffset());
 }
 
 DEFINE_TRACE(PendingSelection)
 {
     visitor->trace(m_frameSelection);
 }
 
 } // namespace blink