Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/login/supervised/supervised_user_creation_browsertest.cc

 // 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.
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 50 matching lines @@
  public:
   SupervisedUserOwnerCreationTest() : SupervisedUserTestBase() {}
 
   void SetUpInProcessBrowserTestFixture() override {
     SupervisedUserTestBase::SetUpInProcessBrowserTestFixture();
     cros_settings_provider_.reset(new StubCrosSettingsProvider());
     cros_settings_provider_->Set(kDeviceOwner, base::StringValue(kTestManager));
   }
 
  private:
-  scoped_ptr<StubCrosSettingsProvider> cros_settings_provider_;
+  std::unique_ptr<StubCrosSettingsProvider> cros_settings_provider_;
   DISALLOW_COPY_AND_ASSIGN(SupervisedUserOwnerCreationTest);
 };
 
 class SupervisedUserTransactionCleanupTest2
     : public SupervisedUserTransactionCleanupTest {
  public:
   SupervisedUserTransactionCleanupTest2()
       : SupervisedUserTransactionCleanupTest() {}
 
   void SetUpInProcessBrowserTestFixture() override {
@@ skipping 105 matching lines @@
 IN_PROC_BROWSER_TEST_(
     SupervisedUserTransactionCleanupTest,
     CreateAndCancelSupervisedUser,
     SupervisedUserTransactionCleanupTest2,
     testing::internal::GetTypeId<SupervisedUserTransactionCleanupTest>()) {
   // Make sure there is no supervised user in list.
   ASSERT_EQ(2UL, user_manager::UserManager::Get()->GetUsers().size());
 }
 
 }  // namespace chromeos