Lock only permitted where a supervised user is or was.

chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm

 // Copyright 2014 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.
 
 #import "chrome/browser/ui/cocoa/profiles/profile_chooser_controller.h"
 
 #include "base/command_line.h"
 #import "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 481 matching lines @@
 
 TEST_F(ProfileChooserControllerTest, SignedInProfileLockEnabled) {
   switches::EnableNewProfileManagementForTesting(
       CommandLine::ForCurrentProcess());
   // Sign in the first profile.
   ProfileInfoCache* cache = testing_profile_manager()->profile_info_cache();
   cache->SetUserNameOfProfileAtIndex(0, base::ASCIIToUTF16(kEmail));
   // The preference, not the email, determines whether the profile can lock.
   browser()->profile()->GetPrefs()->SetString(
       prefs::kGoogleServicesHostedDomain, "google.com");
+  // Lock is only available where a supervised user is present.
+  cache->SetSupervisedUserIdOfProfileAtIndex(1, kEmail);
 
   StartProfileChooserController();
   NSArray* subviews = [[[controller() window] contentView] subviews];
   ASSERT_EQ(2U, [subviews count]);
   subviews = [[subviews objectAtIndex:0] subviews];
 
   // There will be three buttons and two separators in the option buttons view.
   NSArray* buttonSubviews = [[subviews objectAtIndex:0] subviews];
   ASSERT_EQ(5U, [buttonSubviews count]);
 
   // There should be a lock button.
   NSButton* lockButton =
       base::mac::ObjCCast<NSButton>([buttonSubviews objectAtIndex:0]);
   ASSERT_TRUE(lockButton);
   EXPECT_EQ(@selector(lockProfile:), [lockButton action]);
   EXPECT_EQ(controller(), [lockButton target]);
   EXPECT_TRUE([lockButton isEnabled]);
 }