Add policy management for on-screen keyboard.

chrome/browser/chromeos/policy/login_screen_default_policy_browsertest.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 <string>
 
 #include "ash/magnifier/magnifier_constants.h"
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 416 matching lines @@
 
   // Verify that the screen magnifier is disabled.
   chromeos::MagnificationManager* magnification_manager =
       chromeos::MagnificationManager::Get();
   ASSERT_TRUE(magnification_manager);
   EXPECT_FALSE(magnification_manager->IsMagnifierEnabled());
   EXPECT_EQ(ash::kDefaultMagnifierType,
             magnification_manager->GetMagnifierType());
 }
 
+IN_PROC_BROWSER_TEST_F(LoginScreenDefaultPolicyLoginScreenBrowsertest,
+                       DeviceLoginScreenDefaultVirtualKeyboardEnabled) {
+  // Verifies that the default state of the on-screen keyboardaccessibility

[bartfab (slow), 2014/02/11 12:41:37]

Nit: s/keyboardaccessibility/keyboard accessibility/

[kevers, 2014/02/12 14:54:49]

Done.

+  // feature on the login screen can be controlled through device policy.
+
+  // Enable the on-screen keyboard through device policy and wait for the change
+  // to take effect.
+  em::ChromeDeviceSettingsProto& proto(device_policy()->payload());
+  proto.mutable_accessibility_settings()->
+      set_login_screen_default_virtual_keyboard_enabled(true);
+  RefreshDevicePolicyAndWaitForPrefChange(prefs::kVirtualKeyboardEnabled);
+
+  // Verify that the pref which controls the on-screen keyboard in the login
+  // profile has changed to the policy-supplied default.
+  VerifyPrefFollowsRecommendation(prefs::kVirtualKeyboardEnabled,
+                                  base::FundamentalValue(true));
+
+  // Verify that the on-screen keyboard is enabled.
+  chromeos::AccessibilityManager* accessibility_manager =
+      chromeos::AccessibilityManager::Get();
+  ASSERT_TRUE(accessibility_manager);
+  EXPECT_TRUE(accessibility_manager->IsVirtualKeyboardEnabled());
+}
+
 } // namespace policy