Convert //components/sync_driver from scoped_ptr to std::unique_ptr

components/sync_driver/profile_sync_auth_provider_unittest.cc

Index: components/sync_driver/profile_sync_auth_provider_unittest.cc
diff --git a/components/sync_driver/profile_sync_auth_provider_unittest.cc b/components/sync_driver/profile_sync_auth_provider_unittest.cc
index 0ce1ec89b3ef6ed52a1167741e1445f821ef0150..582bb0a0e4d88f9ceb4226e7308d6553315c9bdc 100644
--- a/components/sync_driver/profile_sync_auth_provider_unittest.cc
+++ b/components/sync_driver/profile_sync_auth_provider_unittest.cc
@@ -40,9 +40,9 @@ class ProfileSyncAuthProviderTest : public ::testing::Test {
  protected:
   base::MessageLoop message_loop_;
 
-  scoped_ptr<FakeProfileOAuth2TokenService> token_service_;
-  scoped_ptr<ProfileSyncAuthProvider> auth_provider_frontend_;
-  scoped_ptr<syncer::SyncAuthProvider> auth_provider_backend_;
+  std::unique_ptr<FakeProfileOAuth2TokenService> token_service_;
+  std::unique_ptr<ProfileSyncAuthProvider> auth_provider_frontend_;
+  std::unique_ptr<syncer::SyncAuthProvider> auth_provider_backend_;
 
   std::vector<std::string> issued_tokens_;
   std::vector<GoogleServiceAuthError> request_token_errors_;