ASSERT -> DCHECK in core/editing.

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

Index: third_party/WebKit/Source/core/editing/SelectionAdjuster.cpp
diff --git a/third_party/WebKit/Source/core/editing/SelectionAdjuster.cpp b/third_party/WebKit/Source/core/editing/SelectionAdjuster.cpp
index 9d9ea95f5040feec7ebf9794627f590d1496fca5..51af3d904f09271a648b4ed803aa22bf8211f56d 100644
--- a/third_party/WebKit/Source/core/editing/SelectionAdjuster.cpp
+++ b/third_party/WebKit/Source/core/editing/SelectionAdjuster.cpp
@@ -42,7 +42,7 @@ Node* enclosingShadowHost(Node* node)
 
 bool isEnclosedBy(const PositionInFlatTree& position, const Node& node)
 {
-    ASSERT(position.isNotNull());
+    DCHECK(position.isNotNull());
     Node* anchorNode = position.anchorNode();
     if (anchorNode == node)
         return !position.isAfterAnchor() && !position.isBeforeAnchor();
@@ -101,7 +101,7 @@ Position adjustPositionForEnd(const Position& currentPosition, Node* startContai
 {
     TreeScope& treeScope = startContainerNode->treeScope();
 
-    ASSERT(currentPosition.computeContainerNode()->treeScope() != treeScope);
+    DCHECK(currentPosition.computeContainerNode()->treeScope() != treeScope);
 
     if (Node* ancestor = treeScope.ancestorInThisScope(currentPosition.computeContainerNode())) {
         if (ancestor->contains(startContainerNode))
@@ -135,7 +135,7 @@ Position adjustPositionForStart(const Position& currentPosition, Node* endContai
 {
     TreeScope& treeScope = endContainerNode->treeScope();
 
-    ASSERT(currentPosition.computeContainerNode()->treeScope() != treeScope);
+    DCHECK(currentPosition.computeContainerNode()->treeScope() != treeScope);
 
     if (Node* ancestor = treeScope.ancestorInThisScope(currentPosition.computeContainerNode())) {
         if (ancestor->contains(endContainerNode))
@@ -231,10 +231,10 @@ void SelectionAdjuster::adjustSelectionInDOMTree(VisibleSelection* selection, co
 void SelectionAdjuster::adjustSelectionToAvoidCrossingShadowBoundaries(VisibleSelection* selection)
 {
     // Note: |m_selectionType| isn't computed yet.
-    ASSERT(selection->base().isNotNull());
-    ASSERT(selection->extent().isNotNull());
-    ASSERT(selection->start().isNotNull());
-    ASSERT(selection->end().isNotNull());
+    DCHECK(selection->base().isNotNull());
+    DCHECK(selection->extent().isNotNull());
+    DCHECK(selection->start().isNotNull());
+    DCHECK(selection->end().isNotNull());
 
     // TODO(hajimehoshi): Checking treeScope is wrong when a node is
     // distributed, but we leave it as it is for backward compatibility.