Add source column to chrome://policy showing the origins of policies.

chrome/browser/chromeos/system/tray_accessibility_browsertest.cc

 // Copyright (c) 2012 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 "ash/magnifier/magnification_controller.h"
 #include "ash/shell.h"
 #include "ash/system/tray/system_tray.h"
 #include "ash/system/tray_accessibility.h"
 #include "ash/system/user/login_status.h"
 #include "ash/test/shell_test_api.h"
@@ skipping 86 matching lines @@
 
   void SetShowAccessibilityOptionsInSystemTrayMenu(bool value) {
     if (GetParam() == PREF_SERVICE) {
       PrefService* prefs = GetProfile()->GetPrefs();
       prefs->SetBoolean(prefs::kShouldAlwaysShowAccessibilityMenu, value);
     } else if (GetParam() == POLICY) {
       policy::PolicyMap policy_map;
       policy_map.Set(policy::key::kShowAccessibilityOptionsInSystemTrayMenu,
                      policy::POLICY_LEVEL_MANDATORY,
                      policy::POLICY_SCOPE_USER,
+                     policy::POLICY_SOURCE_CLOUD,
                      new base::FundamentalValue(value),
                      NULL);
       provider_.UpdateChromePolicy(policy_map);
       base::RunLoop().RunUntilIdle();
     } else {
       FAIL() << "Unknown test parameterization";
     }
   }
 
   ash::TrayAccessibility* tray() {
@@ skipping 783 matching lines @@
   EXPECT_FALSE(IsSettingsShownOnDetailMenu());
   CloseDetailMenu();
 }
 
 INSTANTIATE_TEST_CASE_P(TrayAccessibilityTestInstance,
                         TrayAccessibilityTest,
                         testing::Values(PREF_SERVICE,
                                         POLICY));
 
 }  // namespace chromeos