DevTools: DataGrid: fix "recalculateSiblings" method visibility.

BUG=316092

Review URL: https://codereview.chromium.org/428543002

git-svn-id: svn://svn.chromium.org/blink/trunk@179138 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/devtools/front_end/profiler/CPUProfileDataGrid.js

@@ -188,7 +188,7 @@ WebInspector.ProfileDataGridNode.prototype = {
                     children.sort(comparator);
 
                     for (var childIndex = 0; childIndex < childCount; ++childIndex)
-                        children[childIndex]._recalculateSiblings(childIndex);
+                        children[childIndex].recalculateSiblings(childIndex);
 
                     gridNodeGroups.push(children);
                 }

third_party/WebKit/Source/devtools/front_end/ui/DataGrid.js

@@ -1378,7 +1378,7 @@ WebInspector.DataGridNode.prototype = {
 
         child.parent = this;
         child.dataGrid = this.dataGrid;
-        child._recalculateSiblings(index);
+        child.recalculateSiblings(index);
 
         child._depth = undefined;
         child._revealed = undefined;
@@ -1449,8 +1449,9 @@ WebInspector.DataGridNode.prototype = {
 
     /**
      * @param {number} myIndex
+     * @protected
      */
-    _recalculateSiblings: function(myIndex)
+    recalculateSiblings: function(myIndex)
     {
         if (!this.parent)
             return;