Refactor ProfileInfoCacheObserver interface and usage thereof.

chrome/browser/background/background_mode_manager.h

Index: chrome/browser/background/background_mode_manager.h
===================================================================
--- chrome/browser/background/background_mode_manager.h	(revision 115334)
+++ chrome/browser/background/background_mode_manager.h	(working copy)
@@ -163,18 +163,15 @@
   virtual void OnApplicationListChanged(Profile* profile) OVERRIDE;
 
   // Overrides from ProfileInfoCacheObserver
-  virtual void OnProfileAdded(const string16& profile_name,
-                              const string16& profile_base_dir,
-                              const FilePath& profile_path,
-                              const gfx::Image* avatar_image) OVERRIDE;
+  virtual void OnProfileAdded(const FilePath& profile_path,
+                              const string16& profile_base_dir) OVERRIDE;
   virtual void OnProfileWillBeRemoved(const string16& profile_name) OVERRIDE;
   virtual void OnProfileWasRemoved(const string16& profile_name) OVERRIDE;
   virtual void OnProfileNameChanged(const string16& old_profile_name,
                                     const string16& new_profile_name) OVERRIDE;
-  virtual void OnProfileAvatarChanged(const string16& profile_name,
-                                      const string16& profile_base_dir,
-                                      const FilePath& profile_path,
-                                      const gfx::Image* avatar_image) OVERRIDE;
+  virtual void OnProfileAvatarChanged(
+      const FilePath& profile_path,
+      const string16& profile_base_dir) OVERRIDE;
 
   // Overrides from SimpleMenuModel::Delegate implementation.
   virtual bool IsCommandIdChecked(int command_id) const OVERRIDE;