ASSERT -> DCHECK in core/editing.

third_party/WebKit/Source/core/editing/commands/InsertTextCommand.cpp

 /*
  * Copyright (C) 2005 Apple Computer, 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 108 matching lines @@
     Position endPosition = Position(textNode, start.offsetInContainerNode() + text.length());
     setEndingSelectionWithoutValidation(start, endPosition);
     if (!selectInsertedText)
         setEndingSelection(VisibleSelection(endingSelection().visibleEnd(), endingSelection().isDirectional()));
 
     return true;
 }
 
 void InsertTextCommand::doApply(EditingState* editingState)
 {
-    ASSERT(m_text.find('\n') == kNotFound);
+    DCHECK_EQ(m_text.find('\n'), kNotFound);
 
     if (!endingSelection().isNonOrphanedCaretOrRange())
         return;
 
     // Delete the current selection.
     // FIXME: This delete operation blows away the typing style.
     if (endingSelection().isRange()) {
         if (performTrivialReplace(m_text, m_selectInsertedText))
             return;
         bool endOfSelectionWasAtStartOfBlock = isStartOfBlock(endingSelection().visibleEnd());
@@ skipping 30 matching lines @@
         // Don't remove the placeholder yet, otherwise the block we're inserting into would collapse before
         // we get a chance to insert into it.  We check for a placeholder now, though, because doing so requires
         // the creation of a VisiblePosition, and if we did that post-insertion it would force a layout.
     }
 
     // Insert the character at the leftmost candidate.
     startPosition = mostBackwardCaretPosition(startPosition);
 
     // It is possible for the node that contains startPosition to contain only unrendered whitespace,
     // and so deleteInsignificantText could remove it.  Save the position before the node in case that happens.
-    ASSERT(startPosition.computeContainerNode());
+    DCHECK(startPosition.computeContainerNode()) << startPosition;
     Position positionBeforeStartNode(positionInParentBeforeNode(*startPosition.computeContainerNode()));
     deleteInsignificantText(startPosition, mostForwardCaretPosition(startPosition));
     if (!startPosition.inShadowIncludingDocument())
         startPosition = positionBeforeStartNode;
     if (!isVisuallyEquivalentCandidate(startPosition))
         startPosition = mostForwardCaretPosition(startPosition);
 
     startPosition = positionAvoidingSpecialElementBoundary(startPosition, editingState);
     if (editingState->isAborted())
         return;
 
     Position endPosition;
 
     if (m_text == "\t" && isRichlyEditablePosition(startPosition)) {
         endPosition = insertTab(startPosition, editingState);
         if (editingState->isAborted())
             return;
         startPosition = previousPositionOf(endPosition, PositionMoveType::GraphemeCluster);
         if (placeholder.isNotNull())
             removePlaceholderAt(placeholder);
     } else {
         // Make sure the document is set up to receive m_text
         startPosition = positionInsideTextNode(startPosition, editingState);
         if (editingState->isAborted())
             return;
-        ASSERT(startPosition.isOffsetInAnchor());
-        ASSERT(startPosition.computeContainerNode());
-        ASSERT(startPosition.computeContainerNode()->isTextNode());
+        DCHECK(startPosition.isOffsetInAnchor()) << startPosition;
+        DCHECK(startPosition.computeContainerNode()) << startPosition;
+        DCHECK(startPosition.computeContainerNode()->isTextNode()) << startPosition;
         if (placeholder.isNotNull())
             removePlaceholderAt(placeholder);
         Text* textNode = toText(startPosition.computeContainerNode());
         const unsigned offset = startPosition.offsetInContainerNode();
 
         insertTextIntoNode(textNode, offset, m_text);
         endPosition = Position(textNode, offset + m_text.length());
 
         if (m_rebalanceType == RebalanceLeadingAndTrailingWhitespaces) {
             // The insertion may require adjusting adjacent whitespace, if it is present.
             rebalanceWhitespaceAt(endPosition);
             // Rebalancing on both sides isn't necessary if we've inserted only spaces.
             if (!shouldRebalanceLeadingWhitespaceFor(m_text))
                 rebalanceWhitespaceAt(startPosition);
         } else {
-            ASSERT(m_rebalanceType == RebalanceAllWhitespaces);
+            DCHECK_EQ(m_rebalanceType, RebalanceAllWhitespaces);
             if (canRebalance(startPosition) && canRebalance(endPosition))
                 rebalanceWhitespaceOnTextSubstring(textNode, startPosition.offsetInContainerNode(), endPosition.offsetInContainerNode());
         }
     }
 
     setEndingSelectionWithoutValidation(startPosition, endPosition);
 
     // Handle the case where there is a typing style.
     if (EditingStyle* typingStyle = document().frame()->selection().typingStyle()) {
         typingStyle->prepareToApplyAt(endPosition, EditingStyle::PreserveWritingDirection);
@@ skipping 45 matching lines @@
         }
     }
     if (editingState->isAborted())
         return Position();
 
     // return the position following the new tab
     return lastPositionInNode(spanElement);
 }
 
 } // namespace blink