DevTools: do not use string templates in front-end, minifier is confused.

third_party/WebKit/Source/devtools/front_end/network/NetworkPanel.js

 /*
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2008, 2009 Anthony Ricaud <rik@webkit.org>
  * Copyright (C) 2011 Google 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
@@ skipping 626 matching lines @@
 }
 
 /**
  * @param {!Array<{filterType: !WebInspector.NetworkLogView.FilterType, filterValue: string}>} filters
  */
 WebInspector.NetworkPanel.revealAndFilter = function(filters)
 {
     var panel = WebInspector.NetworkPanel._instance();
     var filterString = "";
     for (var filter of filters)
-        filterString += `${filter.filterType}:${filter.filterValue} `;
+        filterString += filter.filterType + ":" + filter.filterValue + " ";
     panel._networkLogView.setTextFilterValue(filterString);
     WebInspector.inspectorView.setCurrentPanel(panel);
 }
 
 /**
  * @return {!WebInspector.NetworkPanel}
  */
 WebInspector.NetworkPanel._instance = function()
 {
     return /** @type {!WebInspector.NetworkPanel} */ (self.runtime.sharedInstance(WebInspector.NetworkPanel));
@@ skipping 112 matching lines @@
      * @return {boolean}
      */
     handleAction: function(context, actionId)
     {
         var panel = WebInspector.context.flavor(WebInspector.NetworkPanel);
         console.assert(panel && panel instanceof WebInspector.NetworkPanel);
         panel._toggleRecording();
         return true;
     }
 }