Don't try to download 'NothingToDownload' placeholder avatar.

chrome/browser/profiles/profile_info_cache.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_BROWSER_PROFILES_PROFILE_INFO_CACHE_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_INFO_CACHE_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 141 matching lines @@
   void AddObserver(ProfileInfoCacheObserver* obs);
   void RemoveObserver(ProfileInfoCacheObserver* obs);
 
   void set_disable_avatar_download_for_testing(
       bool disable_avatar_download_for_testing) {
     disable_avatar_download_for_testing_ = disable_avatar_download_for_testing;
   }
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ProfileInfoCacheTest, DownloadHighResAvatarTest);
+  FRIEND_TEST_ALL_PREFIXES(ProfileInfoCacheTest,
+                           NothingToDownloadHighResAvatarTest);
 
   const base::DictionaryValue* GetInfoForProfileAtIndex(size_t index) const;
   // Saves the profile info to a cache and takes ownership of |info|.
   void SetInfoForProfileAtIndex(size_t index, base::DictionaryValue* info);
   std::string CacheKeyFromProfilePath(const base::FilePath& profile_path) const;
   std::vector<std::string>::iterator FindPositionForProfile(
       const std::string& search_key,
       const base::string16& search_name);
 
   // Returns true if the given icon index is not in use by another profie.
@@ skipping 62 matching lines @@
       avatar_images_downloads_in_progress_;
 
   // Determines of the ProfileAvatarDownloader should be created and executed
   // or not. Only set to true for tests.
   bool disable_avatar_download_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileInfoCache);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_INFO_CACHE_H_