Refactor ProfileInfoCache in c/b/ui/app_list

chrome/browser/profiles/profile_attributes_storage.h

 // Copyright 2015 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_ATTRIBUTES_STORAGE_H_
 #define CHROME_BROWSER_PROFILES_PROFILE_ATTRIBUTES_STORAGE_H_
 
 #include <stddef.h>
 
+#include <string>
+#include <vector>
+
 #include "base/macros.h"
+#include "base/strings/string16.h"
+#include "chrome/browser/profiles/profile_info_cache_observer.h"
 
+namespace base {
+class FilePath;
+}  // namespace base
 class ProfileAttributesEntry;
 
 class ProfileAttributesStorage {
  public:
+  using Observer = ProfileInfoCacheObserver;
+
   ProfileAttributesStorage() {}
   ~ProfileAttributesStorage() {}
 
   // If the |supervised_user_id| is non-empty, the profile will be marked to be
   // omitted from the avatar-menu list on desktop versions. This is used while a
   // supervised user is in the process of being registered with the server. Use
   // ProfileAttributesEntry::SetIsOmitted() to clear the flag when the profile
   // is ready to be shown in the menu.
   virtual void AddProfile(const base::FilePath& profile_path,
                           const base::string16& name,
@@ skipping 13 matching lines @@
   // if the operation is successful and |entry| can be used. Returns false
   // otherwise.
   // |entry| should not be cached as it may not reflect subsequent changes to
   // the profile's metadata.
   virtual bool GetProfileAttributesWithPath(
       const base::FilePath& path, ProfileAttributesEntry** entry) = 0;
 
   // Returns the count of known profiles.
   virtual size_t GetNumberOfProfiles() const = 0;
 
+  virtual void AddObserver(ProfileAttributesStorage::Observer* observer) = 0;
+  virtual void RemoveObserver(ProfileAttributesStorage::Observer* observer) = 0;
+
+ private:
   DISALLOW_COPY_AND_ASSIGN(ProfileAttributesStorage);
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_ATTRIBUTES_STORAGE_H_