[Profiles] Use high resolution avatars if they exist

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 171 matching lines @@
   // Tries to find an icon index that satisfies all the given conditions.
   // Returns true if an icon was found, false otherwise.
   bool ChooseAvatarIconIndexForNewProfile(bool allow_generic_icon,
                                           bool must_be_unique,
                                           size_t* out_icon_index) const;
 
   // Updates the position of the profile at the given index so that the list
   // of profiles is still sorted.
   void UpdateSortForProfileIndex(size_t index);
 
-  void OnGAIAPictureLoaded(const base::FilePath& path,
-                           gfx::Image** image) const;
+  // Loads or uses an already loaded high resolution image of the
+  // generic profile avatar.
+  const gfx::Image* GetHighResAvatarOfProfileAtIndex(size_t index) const;
+
+  void LoadAvatarPictureFromPath(const std::string& key,
+                                 const base::FilePath& image_path) const;
+  void OnAvatarPictureLoaded(const std::string& key,
+                             gfx::Image** image) const;
   void OnGAIAPictureSaved(const base::FilePath& path, bool* success) const;
 
   PrefService* prefs_;
   std::vector<std::string> sorted_keys_;
   base::FilePath user_data_dir_;
 
   ObserverList<ProfileInfoCacheObserver> observer_list_;
 
-  // A cache of gaia profile pictures. This cache is updated lazily so it needs
-  // to be mutable.
-  mutable std::map<std::string, gfx::Image*> gaia_pictures_;
-  // Marks a gaia profile picture as loading. This prevents a picture from
+  // A cache of gaia/high res avatar profile pictures. This cache is updated
+  // lazily so it needs to be mutable.
+  mutable std::map<std::string, gfx::Image*> cached_avatar_images_;
+  // Marks a profile picture as loading. This prevents a picture from
   // loading multiple times.
-  mutable std::map<std::string, bool> gaia_pictures_loading_;
+  mutable std::map<std::string, bool> cached_avatar_images_loading_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileInfoCache);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_INFO_CACHE_H_