[DevTools] Show stack for console.warn messages

third_party/WebKit/Source/devtools/front_end/console/ConsoleViewMessage.js

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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 210 matching lines @@
             }
         }
 
         this._formattedMessage.appendChild(this._messageElement);
         if (this._anchorElement) {
             // Append a space to prevent the anchor text from being glued to the console message when the user selects and copies the console messages.
             this._anchorElement.appendChild(createTextNode(" "));
             this._formattedMessage.insertBefore(this._anchorElement, this._formattedMessage.firstChild);
         }
 
-        var dumpStackTrace = !!consoleMessage.stackTrace && (consoleMessage.source === WebInspector.ConsoleMessage.MessageSource.Network || consoleMessage.level === WebInspector.ConsoleMessage.MessageLevel.Error || consoleMessage.level === WebInspector.ConsoleMessage.MessageLevel.RevokedError || consoleMessage.type === WebInspector.ConsoleMessage.MessageType.Trace);
+        var dumpStackTrace = !!consoleMessage.stackTrace && (consoleMessage.source === WebInspector.ConsoleMessage.MessageSource.Network || consoleMessage.level === WebInspector.ConsoleMessage.MessageLevel.Error || consoleMessage.level === WebInspector.ConsoleMessage.MessageLevel.RevokedError || consoleMessage.type === WebInspector.ConsoleMessage.MessageType.Trace || consoleMessage.level === WebInspector.ConsoleMessage.MessageLevel.Warning);
         if (dumpStackTrace) {
             var treeOutline = new TreeOutline();
             treeOutline.element.classList.add("outline-disclosure", "outline-disclosure-no-padding");
             var content = this._formattedMessage;
             var root = new TreeElement(content);
             root.toggleOnClick = true;
             root.selectable = false;
             content.treeElementForTest = root;
             treeOutline.appendChild(root);
             if (consoleMessage.type === WebInspector.ConsoleMessage.MessageType.Trace)
@@ skipping 1115 matching lines @@
     {
         if (!this._wrapperElement) {
             WebInspector.ConsoleViewMessage.prototype.toMessageElement.call(this);
             this._wrapperElement.classList.toggle("collapsed", this._collapsed);
         }
         return this._wrapperElement;
     },
 
     __proto__: WebInspector.ConsoleViewMessage.prototype
 }