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

chrome/browser/extensions/api/file_system/file_system_api_unittest.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 "chrome/browser/extensions/api/file_system/file_system_api.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 159 matching lines @@
 
   void TearDown() override {
     scoped_user_manager_enabler_.reset();
     user_manager_ = nullptr;
     testing_pref_service_.reset();
     TestingBrowserProcess::GetGlobal()->SetLocalState(nullptr);
   }
 
  protected:
   base::WeakPtr<Volume> volume_;
-  scoped_ptr<TestingPrefServiceSimple> testing_pref_service_;
+  std::unique_ptr<TestingPrefServiceSimple> testing_pref_service_;
   chromeos::FakeChromeUserManager*
       user_manager_;  // Owned by the scope enabler.
-  scoped_ptr<chromeos::ScopedUserManagerEnabler> scoped_user_manager_enabler_;
+  std::unique_ptr<chromeos::ScopedUserManagerEnabler>
+      scoped_user_manager_enabler_;
   content::TestBrowserThreadBundle thread_bundle_;
 };
 #endif
 
 TEST(FileSystemApiUnitTest, FileSystemChooseEntryFunctionFileTypeInfoTest) {
   // AcceptsAllTypes is ignored when no other extensions are available.
   ui::SelectFileDialog::FileTypeInfo file_type_info;
   bool acceptsAllTypes = false;
   FileSystemChooseEntryFunction::BuildFileTypeInfo(&file_type_info,
       base::FilePath::StringType(), NULL, &acceptsAllTypes);
@@ skipping 238 matching lines @@
     base::RunLoop().RunUntilIdle();
 
     EXPECT_EQ(1, delegate.show_dialog_counter());
     EXPECT_EQ(0, delegate.show_notification_counter());
     EXPECT_EQ(ConsentProvider::CONSENT_REJECTED, result);
   }
 }
 #endif
 
 }  // namespace extensions