Fix header guards in //chrome

chrome/browser/password_manager/password_manager_util_mac.h

Index: chrome/browser/password_manager/password_manager_util_mac.h
diff --git a/chrome/browser/password_manager/password_manager_util_mac.h b/chrome/browser/password_manager/password_manager_util_mac.h
index 02545f9ffa86739de16390e62d154e4cb0a6bc5e..a4c8df7b770f14247a022491a125311731d151b2 100644
--- a/chrome/browser/password_manager/password_manager_util_mac.h
+++ b/chrome/browser/password_manager/password_manager_util_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_UTIL_MAC_H_
-#define CHROME_BROWSER_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_UTIL_MAC_H_
+#ifndef CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_UTIL_MAC_H_
+#define CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_UTIL_MAC_H_
 
 namespace password_manager_util_mac {
 
@@ -13,4 +13,4 @@ bool AuthenticateUser();
 
 }  // namespace password_manager_util_mac
 
-#endif // CHROME_BROWSER_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_MANAGER_UTIL_MAC_H_
+#endif // CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_UTIL_MAC_H_