DevTools: only allow status bar items in status bars.

Source/devtools/front_end/profiler/HeapSnapshotView.js

Index: Source/devtools/front_end/profiler/HeapSnapshotView.js
diff --git a/Source/devtools/front_end/profiler/HeapSnapshotView.js b/Source/devtools/front_end/profiler/HeapSnapshotView.js
index f7465ef62059ffec154acd74fbfce0898f330fb2..03f929ce23cc36b2f81381062246be63a6b1b004 100644
--- a/Source/devtools/front_end/profiler/HeapSnapshotView.js
+++ b/Source/devtools/front_end/profiler/HeapSnapshotView.js
@@ -523,12 +523,15 @@ WebInspector.HeapSnapshotView.prototype = {
             this._constructorsDataGrid.setSelectionRange(minId, maxId);
     },
 
-    get statusBarItems()
+    /**
+     * @return {!Array.<!WebInspector.StatusBarItem>}
+     */
+    statusBarItems: function()
     {
-        var result = [this._perspectiveSelect.element, this._classNameFilter.element];
+        var result = [this._perspectiveSelect, this._classNameFilter];
         if (this._profile.profileType() !== WebInspector.ProfileTypeRegistry.instance.trackingHeapSnapshotProfileType)
-            result.push(this._baseSelect.element, this._filterSelect.element);
-        result.push(this._selectedSizeText.element);
+            result.push(this._baseSelect, this._filterSelect);
+        result.push(this._selectedSizeText);
         return result;
     },