Remove ImageLoadingTracker class

chrome/common/extensions/extension_resource.h

 // Copyright (c) 2012 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_COMMON_EXTENSIONS_EXTENSION_RESOURCE_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_RESOURCE_H_
 
 #include <string>
 
 #include "base/file_path.h"
@@ skipping 19 matching lines @@
 
   ~ExtensionResource();
 
   // set_follow_symlinks_anywhere allows the resource to be a symlink to
   // anywhere in the filesystem. By default, resources have to be within
   // |extension_root| after resolving symlinks.
   void set_follow_symlinks_anywhere();
 
   // Returns actual path to the resource (default or locale specific). In the
   // browser process, this will DCHECK if not called on the file thread. To
-  // easily load extension images on the UI thread, see ImageLoadingTracker.
+  // easily load extension images on the UI thread, see ImageLoader.
   const base::FilePath& GetFilePath() const;
 
   // Gets the physical file path for the extension resource, taking into account
   // localization. In the browser process, this will DCHECK if not called on the
   // file thread. To easily load extension images on the UI thread, see
-  // ImageLoadingTracker.
+  // ImageLoader.
   //
   // The relative path must not resolve to a location outside of
   // |extension_root|. Iff |file_can_symlink_outside_root| is true, then the
   // file can be a symlink that links outside of |extension_root|.
   static base::FilePath GetFilePath(const base::FilePath& extension_root,
                                     const base::FilePath& relative_path,
                                     SymlinkPolicy symlink_policy);
 
   // Getters
   const std::string& extension_id() const { return extension_id_; }
@@ skipping 19 matching lines @@
 
   // If |follow_symlinks_anywhere_| is true then the resource itself must be
   // within |extension_root|, but it can be a symlink to a file that is not.
   bool follow_symlinks_anywhere_;
 
   // Full path to extension resource. Starts empty.
   mutable base::FilePath full_resource_path_;
 };
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_RESOURCE_H_