Refactor the code that creates the list of secondary accounts

chrome/browser/profiles/profiles_state.h

Index: chrome/browser/profiles/profiles_state.h
diff --git a/chrome/browser/profiles/profiles_state.h b/chrome/browser/profiles/profiles_state.h
index 782fb3adf330a84dd0f469922125cd1fb5579fff..846d2b282b60b137023dfe238d76b8f734b4ca4e 100644
--- a/chrome/browser/profiles/profiles_state.h
+++ b/chrome/browser/profiles/profiles_state.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_BROWSER_PROFILES_PROFILES_STATE_H_
 #define CHROME_BROWSER_PROFILES_PROFILES_STATE_H_
 
+#include <vector>
 #include "base/strings/string16.h"
 
 class Browser;
@@ -35,6 +36,13 @@ base::string16 GetActiveProfileDisplayName(Browser* browser);
 void UpdateProfileName(Profile* profile,
                        const base::string16& new_profile_name);
 
+// Returns the list of secondary accounts for a specific |profile|, which is
+// all the email addresses associated with the profile that are not equal to
+// the |primary_account|.
+std::vector<std::string> GetSecondaryAccountsForProfile(
+    Profile* profile,
+    const std::string& primary_account);
+
 }  // namespace profiles
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILES_STATE_H_