[Cleanup] Used scoped pointers in KeyedServiceFactory's SetTestingFactory functions.

chrome/browser/chromeos/file_system_provider/mount_path_util_unittest.cc

Index: chrome/browser/chromeos/file_system_provider/mount_path_util_unittest.cc
diff --git a/chrome/browser/chromeos/file_system_provider/mount_path_util_unittest.cc b/chrome/browser/chromeos/file_system_provider/mount_path_util_unittest.cc
index 7c5ee2d85f61ac657d297b25d2d32676d84594bb..570f0b965fafb6974ce902b2c64db404c752ba09 100644
--- a/chrome/browser/chromeos/file_system_provider/mount_path_util_unittest.cc
+++ b/chrome/browser/chromeos/file_system_provider/mount_path_util_unittest.cc
@@ -56,13 +56,6 @@ storage::FileSystemURL CreateFileSystemURL(
       base::FilePath(mount_path.BaseName().Append(relative_path)));
 }
 
-// Creates a Service instance. Used to be able to destroy the service in
-// TearDown().
-KeyedService* CreateService(content::BrowserContext* context) {
-  return new Service(Profile::FromBrowserContext(context),
-                     extensions::ExtensionRegistry::Get(context));
-}
-
 }  // namespace
 
 class FileSystemProviderMountPathUtilTest : public testing::Test {
@@ -78,18 +71,11 @@ class FileSystemProviderMountPathUtilTest : public testing::Test {
     user_manager_ = new FakeChromeUserManager();
     user_manager_enabler_.reset(new ScopedUserManagerEnabler(user_manager_));
     user_manager_->AddUser(profile_->GetProfileUserName());
-    ServiceFactory::GetInstance()->SetTestingFactory(profile_, &CreateService);
     file_system_provider_service_ = Service::Get(profile_);
     file_system_provider_service_->SetFileSystemFactoryForTesting(
         base::Bind(&FakeProvidedFileSystem::Create));
   }
 
-  void TearDown() override {
-    // Setting the testing factory to NULL will destroy the created service
-    // associated with the testing profile.
-    ServiceFactory::GetInstance()->SetTestingFactory(profile_, NULL);
-  }
-
   content::TestBrowserThreadBundle thread_bundle_;
   scoped_ptr<TestingProfileManager> profile_manager_;
   TestingProfile* profile_;  // Owned by TestingProfileManager.