DevTools: teach TabbedPane.setTabIcon to accept UI.Icon instances

third_party/WebKit/Source/devtools/front_end/sources/TabbedEditorContainer.js

 /*
  * 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
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 515 matching lines @@
   }
 
   /**
    * @param {!Workspace.UISourceCode} uiSourceCode
    */
   _updateFileTitle(uiSourceCode) {
     var tabId = this._tabIds.get(uiSourceCode);
     if (tabId) {
       var title = this._titleForFile(uiSourceCode);
       this._tabbedPane.changeTabTitle(tabId, title);
+      var icon = null;
       if (Persistence.persistence.hasUnsavedCommittedChanges(uiSourceCode)) {
-        this._tabbedPane.setTabIcon(
-            tabId, 'smallicon-warning', Common.UIString('Changes to this file were not saved to file system.'));
+        icon = UI.Icon.create('smallicon-warning');
+        icon.title = Common.UIString('Changes to this file were not saved to file system.');
       } else if (Runtime.experiments.isEnabled('persistence2') && Persistence.persistence.binding(uiSourceCode)) {
         var binding = Persistence.persistence.binding(uiSourceCode);
-        this._tabbedPane.setTabIcon(
-            tabId, 'smallicon-green-checkmark',
-            Persistence.PersistenceUtils.tooltipForUISourceCode(binding.fileSystem));
-      } else {
-        this._tabbedPane.setTabIcon(tabId, '');
+        icon = UI.Icon.create('smallicon-green-checkmark');
+        icon.title = Persistence.PersistenceUtils.tooltipForUISourceCode(binding.fileSystem);
       }
+      this._tabbedPane.setTabIcon(tabId, icon);
     }
   }
 
   /**
    * @param {!Common.Event} event
    */
   _uiSourceCodeTitleChanged(event) {
     var uiSourceCode = /** @type {!Workspace.UISourceCode} */ (event.data);
     this._updateFileTitle(uiSourceCode);
     this._updateHistory();
@@ skipping 254 matching lines @@
 
   /**
    * @override
    * @param {string} tabId
    * @param {!UI.ContextMenu} contextMenu
    */
   onContextMenu(tabId, contextMenu) {
     this._editorContainer._onContextMenu(tabId, contextMenu);
   }
 };