Disable lock if no credentials are present

chrome/browser/signin/local_auth.cc

 // 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.
 
 #include "chrome/browser/signin/local_auth.h"
 
 #include "base/base64.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
@@ skipping 180 matching lines @@
   ProfileInfoCache& info =
       g_browser_process->profile_manager()->GetProfileInfoCache();
   size_t info_index = info.GetIndexOfProfileWithPath(profile->GetPath());
   if (info_index == std::string::npos) {
     NOTREACHED();  // This should never happen but fail safely if it does.
     return false;
   }
   return ValidateLocalAuthCredentials(info_index, password);
 }
 
+bool LocalAuthCredentialsExist(size_t info_index) {
+  ProfileInfoCache& info =
+      g_browser_process->profile_manager()->GetProfileInfoCache();
+
+  std::string encodedhash =
+      info.GetLocalAuthCredentialsOfProfileAtIndex(info_index);
+
+  return !encodedhash.empty();
+}
+
+bool LocalAuthCredentialsExist(const Profile* profile) {
+  DCHECK(profile);
+
+  ProfileInfoCache& info =
+      g_browser_process->profile_manager()->GetProfileInfoCache();
+  size_t info_index = info.GetIndexOfProfileWithPath(profile->GetPath());
+  if (info_index == std::string::npos) {
+    NOTREACHED();  // This should never happen but fail safely if it does.
+    return false;
+  }
+  return LocalAuthCredentialsExist(info_index);
+
+}
+
 }  // namespace chrome