Add Active Directory password change screen.

chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h

Index: chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h
diff --git a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h
index a3b8da0efd703d06175ef3b24810ec7d43bf2462..a81b462f4476533a8d679afd8cbcea5f10c1e479 100644
--- a/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h
@@ -98,9 +98,13 @@ class GaiaScreenHandler : public BaseScreenHandler,
                            const std::string& password,
                            bool using_saml);
 
-  void HandleCompleteAdAuthentication(const std::string& user_name,
+  void HandleCompleteAdAuthentication(const std::string& username,
                                       const std::string& password);
 
+  void HandleCompleteAdPasswordChange(const std::string& username,
+                                      const std::string& old_password,
+                                      const std::string& new_password);
+
   void HandleUsingSAMLAPI();
   void HandleScrapedPasswordCount(int password_count);
   void HandleScrapedPasswordVerificationFailed();
@@ -139,7 +143,7 @@ class GaiaScreenHandler : public BaseScreenHandler,
                 const std::string& uid);
 
   // Callback for writing password into pipe.
-  void OnPasswordPipeReady(const std::string& user_name,
+  void OnPasswordPipeReady(const std::string& username,
                            const Key& key,
                            base::ScopedFD password_fd);