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

chrome/browser/extensions/api/sync_file_system/sync_file_system_browsertest.cc

Index: chrome/browser/extensions/api/sync_file_system/sync_file_system_browsertest.cc
diff --git a/chrome/browser/extensions/api/sync_file_system/sync_file_system_browsertest.cc b/chrome/browser/extensions/api/sync_file_system/sync_file_system_browsertest.cc
index b1095e225670467dc2d3e423cc654fa8d1519ce2..9dd2a56b64222f1f369d7da1f47e881152b07d27 100644
--- a/chrome/browser/extensions/api/sync_file_system/sync_file_system_browsertest.cc
+++ b/chrome/browser/extensions/api/sync_file_system/sync_file_system_browsertest.cc
@@ -36,11 +36,11 @@ class FakeDriveServiceFactory
       : change_observer_(change_observer) {}
   ~FakeDriveServiceFactory() override {}
 
-  scoped_ptr<drive::DriveServiceInterface> CreateDriveService(
+  std::unique_ptr<drive::DriveServiceInterface> CreateDriveService(
       OAuth2TokenService* oauth2_token_service,
       net::URLRequestContextGetter* url_request_context_getter,
       base::SequencedTaskRunner* blocking_task_runner) override {
-    scoped_ptr<drive::FakeDriveService> drive_service(
+    std::unique_ptr<drive::FakeDriveService> drive_service(
         new drive::FakeDriveService);
     drive_service->AddChangeObserver(change_observer_);
     return std::move(drive_service);
@@ -93,7 +93,7 @@ class SyncFileSystemTest : public extensions::PlatformAppBrowserTest,
     ExtensionServiceInterface* extension_service =
         extensions::ExtensionSystem::Get(context)->extension_service();
 
-    scoped_ptr<drive_backend::SyncEngine::DriveServiceFactory>
+    std::unique_ptr<drive_backend::SyncEngine::DriveServiceFactory>
         drive_service_factory(new FakeDriveServiceFactory(this));
 
     fake_signin_manager_.reset(new FakeSigninManagerForTesting(
@@ -112,7 +112,7 @@ class SyncFileSystemTest : public extensions::PlatformAppBrowserTest,
         std::move(drive_service_factory), in_memory_env_.get());
     remote_service_->SetSyncEnabled(true);
     factory->set_mock_remote_file_service(
-        scoped_ptr<RemoteFileSyncService>(remote_service_));
+        std::unique_ptr<RemoteFileSyncService>(remote_service_));
   }
 
   // drive::FakeDriveService::ChangeObserver override.
@@ -150,9 +150,9 @@ class SyncFileSystemTest : public extensions::PlatformAppBrowserTest,
 
  private:
   base::ScopedTempDir base_dir_;
-  scoped_ptr<leveldb::Env> in_memory_env_;
+  std::unique_ptr<leveldb::Env> in_memory_env_;
 
-  scoped_ptr<FakeSigninManagerForTesting> fake_signin_manager_;
+  std::unique_ptr<FakeSigninManagerForTesting> fake_signin_manager_;
 
   drive_backend::SyncEngine* remote_service_;