DevTools: introduce beautiful checkmarks in navigator and editor tabs

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.
  *
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   }
 
   /**
    * @param {!WebInspector.UISourceCode} uiSourceCode
    */
   _updateFileTitle(uiSourceCode) {
     var tabId = this._tabIds.get(uiSourceCode);
     if (tabId) {
       var title = this._titleForFile(uiSourceCode);
       this._tabbedPane.changeTabTitle(tabId, title);
-      if (WebInspector.persistence.hasUnsavedCommittedChanges(uiSourceCode))
+      if (WebInspector.persistence.hasUnsavedCommittedChanges(uiSourceCode)) {
         this._tabbedPane.setTabIcon(
             tabId, 'smallicon-warning', WebInspector.UIString('Changes to this file were not saved to file system.'));
-      else
+      } else if (Runtime.experiments.isEnabled('persistence2') && WebInspector.persistence.binding(uiSourceCode)) {
+        var binding = WebInspector.persistence.binding(uiSourceCode);
+        this._tabbedPane.setTabIcon(tabId, 'smallicon-green-checkmark', WebInspector.PersistenceUtils.tooltipForUISourceCode(binding.fileSystem));
+      } else {
         this._tabbedPane.setTabIcon(tabId, '');
+      }
     }
   }
 
   _uiSourceCodeTitleChanged(event) {
     var uiSourceCode = /** @type {!WebInspector.UISourceCode} */ (event.target);
     this._updateFileTitle(uiSourceCode);
     this._updateHistory();
   }
 
   _uiSourceCodeWorkingCopyChanged(event) {
@@ skipping 244 matching lines @@
 
   /**
    * @override
    * @param {string} tabId
    * @param {!WebInspector.ContextMenu} contextMenu
    */
   onContextMenu(tabId, contextMenu) {
     this._editorContainer._onContextMenu(tabId, contextMenu);
   }
 };