[Cleanup] Const-correct the profile() method for the EasyUnlockService

chrome/browser/chromeos/profiles/profile_helper.h

Index: chrome/browser/chromeos/profiles/profile_helper.h
diff --git a/chrome/browser/chromeos/profiles/profile_helper.h b/chrome/browser/chromeos/profiles/profile_helper.h
index e15475fc37a01b205f306788927e9dfba7806851..a7a078c1c1924d2ccd07a2572211595e2e0f187c 100644
--- a/chrome/browser/chromeos/profiles/profile_helper.h
+++ b/chrome/browser/chromeos/profiles/profile_helper.h
@@ -67,7 +67,7 @@ class ProfileHelper
 
   // Returns user_id hash for |profile| instance or empty string if hash
   // could not be extracted from |profile|.
-  static std::string GetUserIdHashFromProfile(Profile* profile);
+  static std::string GetUserIdHashFromProfile(const Profile* profile);
 
   // Returns user profile dir in a format [u-user_id_hash].
   static base::FilePath GetUserProfileDir(const std::string& user_id_hash);
@@ -75,14 +75,14 @@ class ProfileHelper
   // Returns true if |profile| is the signin Profile. This can be used during
   // construction of the signin Profile to determine if that Profile is the
   // signin Profile.
-  static bool IsSigninProfile(Profile* profile);
+  static bool IsSigninProfile(const Profile* profile);
 
   // Returns true when |profile| corresponds to owner's profile.
   static bool IsOwnerProfile(Profile* profile);
 
   // Returns true when |profile| corresponds to the primary user profile
   // of the current session.
-  static bool IsPrimaryProfile(Profile* profile);
+  static bool IsPrimaryProfile(const Profile* profile);
 
   // Initialize a bunch of services that are tied to a browser profile.
   // TODO(dzhioev): Investigate whether or not this method is needed.
@@ -117,7 +117,8 @@ class ProfileHelper
   Profile* GetProfileByUserUnsafe(const user_manager::User* user);
 
   // Returns NULL if User is not created.
-  user_manager::User* GetUserByProfile(Profile* profile);
+  const user_manager::User* GetUserByProfile(const Profile* profile) const;
+  user_manager::User* GetUserByProfile(Profile* profile) const;
 
   static std::string GetUserIdHashByUserIdForTesting(
       const std::string& user_id);