Fetch a new GAIA picture every time chrome://settings/manageProfile comes up.

chrome/browser/profiles/profiles_state.h

 // Copyright 2013 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_PROFILES_STATE_H_
 #define CHROME_BROWSER_PROFILES_PROFILES_STATE_H_
 
 #include <vector>
 #include "base/strings/string16.h"
 
@@ skipping 30 matching lines @@
 // the |primary_account|.
 std::vector<std::string> GetSecondaryAccountsForProfile(
     Profile* profile,
     const std::string& primary_account);
 
 // Returns whether the |browser|'s profile is a non-incognito or guest profile.
 // The distinction is needed because guest profiles are implemented as
 // incognito profiles.
 bool IsRegularOrGuestSession(Browser* browser);
 
+// If the --google-profile-info flag is turned on, starts an update for a new
+// version of the Gaia profile picture.
+void UpdateGaiaProfilePhotoIfNeeded(Profile* profile);
+
 }  // namespace profiles
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILES_STATE_H_