Tweaks ChromeURLDataManager comments.

chrome/browser/ui/webui/chrome_url_data_manager.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_CHROME_URL_DATA_MANAGER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROME_URL_DATA_MANAGER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 34 matching lines @@
   struct DeleteDataSource {
     static void Destruct(const DataSource* data_source) {
       ChromeURLDataManager::DeleteDataSource(data_source);
     }
   };
 
   // A DataSource is an object that can answer requests for data
   // asynchronously. DataSources are collectively owned with refcounting smart
   // pointers and should never be deleted on the IO thread, since their calls
   // are handled almost always on the UI thread and there's a possibility of a
-  // data race.  The |DeleteOnUIThread| trait is used to enforce this.
+  // data race.  The |DeleteDataSource| trait above is used to enforce this.
   //
   // An implementation of DataSource should handle calls to
   // StartDataRequest() by starting its (implementation-specific) asynchronous
   // request for the data, then call SendResponse() to notify.
   class DataSource : public base::RefCountedThreadSafe<
       DataSource, DeleteDataSource> {
    public:
     // See source_name_ and message_loop_ below for docs on these parameters.
     DataSource(const std::string& source_name, MessageLoop* message_loop);
 
@@ skipping 106 matching lines @@
   // Lock used when accessing |data_sources_|.
   static base::Lock delete_lock_;
 
   // |data_sources_| that are no longer referenced and scheduled for deletion.
   static DataSources* data_sources_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeURLDataManager);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROME_URL_DATA_MANAGER_H_