[Profiles] Send out less profile avatar related notifications

chrome/browser/profiles/profile_info_cache.h

Index: chrome/browser/profiles/profile_info_cache.h
diff --git a/chrome/browser/profiles/profile_info_cache.h b/chrome/browser/profiles/profile_info_cache.h
index d38fca1d17875d29ee5d570dcdfb9cad012e0f1b..3462c8eda8b55c77749a51defa5f8dd7675607dc 100644
--- a/chrome/browser/profiles/profile_info_cache.h
+++ b/chrome/browser/profiles/profile_info_cache.h
@@ -136,10 +136,10 @@ class ProfileInfoCache : public ProfileInfoInterface,
   // Register cache related preferences in Local State.
   static void RegisterPrefs(PrefRegistrySimple* registry);
 
-  // Starts downloading the high res avatar at index |icon_index| for profile
-  // with path |profile_path|.
-  void DownloadHighResAvatar(size_t icon_index,
-                             const base::FilePath& profile_path);
+  // Checks whether the high res avatar at index |icon_index| exists, and
+  // if it does not, calls |DownloadHighResAvatar|.
+  void DownloadHighResAvatarIfNeeded(size_t icon_index,
+                                     const base::FilePath& profile_path);
 
   // Saves the avatar |image| at |image_path|. This is used both for the
   // GAIA profile pictures and the ProfileAvatarDownloader that is used to
@@ -184,6 +184,12 @@ class ProfileInfoCache : public ProfileInfoInterface,
   // generic profile avatar.
   const gfx::Image* GetHighResAvatarOfProfileAtIndex(size_t index) const;
 
+  // Starts downloading the high res avatar at index |icon_index| for profile
+  // with path |profile_path|.
+  void DownloadHighResAvatar(const std::string file_name,

[Mike Lerman, 2015/01/27 16:39:15]

nit: mention |file_name| in the comment, for completeness.

Also, file_name should be const std::string&, not merely const std::string.
(Note: &)

[noms (inactive), 2015/01/28 02:18:35]

Done.

+                             size_t icon_index,
+                             const base::FilePath& profile_path);
+
   // Returns the decoded image at |image_path|. Used both by the GAIA profile
   // image and the high res avatars.
   const gfx::Image* LoadAvatarPictureFromPath(