Run clang-tidy modernize-use-equals-{delete,default} on //net, pt 2

See the bugs and cxx post for justification and details:
https://groups.google.com/a/chromium.org/forum/#!topic/cxx/RkOHzIK6Tq8

This change was done using clang-tidy as described here:
https://chromium.googlesource.com/chromium/src/+/lkcr/docs/clang_tidy.md

In some cases the the tool leaves behind a string of commas where it
replaced a member initializer list
(https://bugs.llvm.org/show_bug.cgi?id=35051). They were cleaned up with:
  git diff --name-only | \
    xargs sed -E -i 's/(^\s*|\)\s*):[ ,]*= default/\1 = default/'

BUG=778959,778957
This CL was uploaded by git cl split.

R=eroman@chromium.org

Change-Id: I0c2a41fbeee3648e886b70f259e333176ffa4334
Reviewed-on: https://chromium-review.googlesource.com/799595
Reviewed-by: Eric Roman <eroman@chromium.org>
Commit-Queue: Chris Watkins <watk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#520798}

• net/http/bidirectional_stream.cc[diff]
• net/http/bidirectional_stream_impl.cc[diff]
• net/http/bidirectional_stream_request_info.cc[diff]
• net/http/bidirectional_stream_unittest.cc[diff]
• net/http/broken_alternative_services.cc[diff]
• net/http/failing_http_transaction_factory.cc[diff]
• net/http/http_auth_cache.cc[diff]
• net/http/http_auth_cache_unittest.cc[diff]
• net/http/http_auth_challenge_tokenizer.cc[diff]
• net/http/http_auth_filter.cc[diff]
• net/http/http_auth_gssapi_posix.cc[diff]
• net/http/http_auth_handler.cc[diff]
• net/http/http_auth_handler_basic.cc[diff]
• net/http/http_auth_handler_digest.cc[diff]
• net/http/http_auth_handler_factory.cc[diff]
• net/http/http_auth_handler_factory_unittest.cc[diff]
• net/http/http_auth_handler_mock.cc[diff]
• net/http/http_auth_handler_negotiate.cc[diff]
• net/http/http_auth_handler_ntlm_portable.cc[diff]
• net/http/http_auth_preferences.cc[diff]
• net/http/http_basic_state.cc[diff]
• net/http/http_basic_stream.cc[diff]
• net/http/http_cache.cc[diff]
• net/http/http_cache_lookup_manager.cc[diff]
• net/http/http_cache_unittest.cc[diff]
• net/http/http_cache_writers.cc[diff]
• net/http/http_cache_writers_unittest.cc[diff]
• net/http/http_content_disposition.cc[diff]
• net/http/http_network_session.cc[diff]
• net/http/http_network_session_peer.cc[diff]
• net/http/http_network_transaction_ssl_unittest.cc[diff]
• net/http/http_network_transaction_unittest.cc[diff]
• net/http/http_proxy_client_socket_pool.cc[diff]
• net/http/http_proxy_client_socket_pool_unittest.cc[diff]
• net/http/http_proxy_client_socket_wrapper_unittest.cc[diff]
• net/http/http_request_headers.cc[diff]
• net/http/http_request_info.cc[diff]
• net/http/http_response_body_drainer.cc[diff]
• net/http/http_response_body_drainer_unittest.cc[diff]
• net/http/http_response_headers.cc[diff]
• net/http/http_response_info.cc[diff]
• net/http/http_server_properties.cc[diff]
• net/http/http_server_properties_manager.cc[diff]
• net/http/http_server_properties_manager_unittest.cc[diff]
• net/http/http_stream_factory.cc[diff]
• net/http/http_stream_factory_impl_job.cc[diff]
• net/http/http_stream_factory_impl_job_controller_unittest.cc[diff]
• net/http/http_stream_factory_impl_unittest.cc[diff]
• net/http/http_stream_factory_test_util.cc[diff]
• net/http/http_stream_parser.cc[diff]
• net/http/http_transaction_test_util.cc[diff]
• net/http/http_util.cc[diff]
• net/http/mock_allow_http_auth_preferences.cc[diff]
• net/http/mock_gssapi_library_posix.cc[diff]
• net/http/mock_http_cache.cc[diff]
• net/http/partial_data.cc[diff]
• net/http/proxy_connect_redirect_http_stream.cc[diff]
• net/http/transport_security_persister_unittest.cc[diff]
• net/http/transport_security_state.cc[diff]
• net/http/transport_security_state_unittest.cc[diff]
• net/http/url_security_manager.cc[diff]
• net/network_error_logging/network_error_logging_service.cc[diff]
• net/network_error_logging/network_error_logging_service_unittest.cc[diff]
• net/server/http_connection.cc[diff]
• net/server/http_server.cc[diff]
• net/server/http_server_request_info.cc[diff]
• net/server/http_server_response_info.cc[diff]
• net/server/http_server_unittest.cc[diff]
• net/server/web_socket.cc[diff]
• net/server/web_socket_encoder.cc[diff]
• net/server/web_socket_encoder_unittest.cc[diff]
• net/socket/client_socket_pool.cc[diff]
• net/socket/client_socket_pool_base.cc[diff]
• net/socket/client_socket_pool_base_unittest.cc[diff]
• net/socket/client_socket_pool_manager.cc[diff]
• net/socket/fuzzed_datagram_client_socket.cc[diff]
• net/socket/fuzzed_server_socket.cc[diff]
• net/socket/fuzzed_socket.cc[diff]
• net/socket/fuzzed_socket_factory.cc[diff]
• net/socket/mock_client_socket_pool_manager.cc[diff]
• net/socket/server_socket.cc[diff]
• net/socket/socket_test_util.cc[diff]
• net/socket/socks_client_socket_pool.cc[diff]
• net/socket/socks_client_socket_pool_unittest.cc[diff]
• net/socket/ssl_client_socket_pool.cc[diff]
• net/socket/ssl_client_socket_unittest.cc[diff]
• net/socket/ssl_server_socket_impl.cc[diff]
• net/socket/ssl_server_socket_unittest.cc[diff]
• net/socket/stream_socket.cc[diff]
• net/socket/tcp_client_socket_unittest.cc[diff]
• net/socket/tcp_server_socket.cc[diff]
• net/socket/tcp_socket_posix.cc[diff]
• net/socket/tcp_socket_unittest.cc[diff]
• net/socket/transport_client_socket_pool.cc[diff]
• net/socket/transport_client_socket_pool_test_util.cc[diff]
• net/socket/transport_client_socket_pool_unittest.cc[diff]
• net/socket/transport_client_socket_unittest.cc[diff]
• net/socket/udp_client_socket.cc[diff]
• net/socket/udp_server_socket.cc[diff]
• net/socket/unix_domain_server_socket_posix.cc[diff]
• net/test/embedded_test_server/default_handlers.cc[diff]
• net/test/embedded_test_server/embedded_test_server_unittest.cc[diff]
• net/test/embedded_test_server/http_request.cc[diff]
• net/test/embedded_test_server/http_response.cc[diff]
• net/test/embedded_test_server/simple_connection_listener.cc[diff]
• net/test/scoped_disable_exit_on_dfatal.cc[diff]
• net/test/spawned_test_server/base_test_server.cc[diff]
• net/test/url_request/ssl_certificate_error_job.cc[diff]
• net/test/url_request/url_request_failed_job.cc[diff]
• net/test/url_request/url_request_hanging_read_job.cc[diff]
• net/test/url_request/url_request_mock_data_job.cc[diff]
• net/test/url_request/url_request_mock_http_job.cc[diff]
• net/test/url_request/url_request_slow_download_job.cc[diff]
• net/tools/cachetool/cachetool.cc[diff]
• net/tools/content_decoder_tool/content_decoder_tool.cc[diff]
• net/tools/gdig/file_net_log.cc[diff]
• net/tools/get_server_time/get_server_time.cc[diff]
• net/tools/net_watcher/net_watcher.cc[diff]
• net/tools/quic/chlo_extractor.cc[diff]
• net/tools/quic/chlo_extractor_test.cc[diff]
• net/tools/quic/end_to_end_test.cc[diff]
• net/tools/quic/platform/impl/quic_epoll_clock.cc[diff]
• net/tools/quic/quic_client.cc[diff]
• net/tools/quic/quic_client_base.cc[diff]
• net/tools/quic/quic_client_message_loop_network_helper.cc[diff]
• net/tools/quic/quic_default_packet_writer.cc[diff]
• net/tools/quic/quic_dispatcher.cc[diff]
• net/tools/quic/quic_dispatcher_test.cc[diff]
• net/tools/quic/quic_epoll_alarm_factory.cc[diff]
• net/tools/quic/quic_epoll_connection_helper.cc[diff]
• net/tools/quic/quic_http_response_cache.cc[diff]
• net/tools/quic/quic_packet_reader.cc[diff]
• net/tools/quic/quic_packet_writer_wrapper.cc[diff]
• net/tools/quic/quic_per_connection_packet_writer.cc[diff]
• net/tools/quic/quic_server.cc[diff]
• net/tools/quic/quic_server_test.cc[diff]
• net/tools/quic/quic_simple_crypto_server_stream_helper.cc[diff]
• net/tools/quic/quic_simple_dispatcher.cc[diff]
• net/tools/quic/quic_simple_per_connection_packet_writer.cc[diff]
• net/tools/quic/quic_simple_server.cc[diff]
• net/tools/quic/quic_simple_server_packet_writer.cc[diff]
• net/tools/quic/quic_simple_server_session_helper.cc[diff]
• net/tools/quic/quic_simple_server_session_test.cc[diff]
• net/tools/quic/quic_simple_server_stream.cc[diff]
• net/tools/quic/quic_simple_server_stream_test.cc[diff]
• net/tools/quic/quic_spdy_client_base.cc[diff]
• net/tools/quic/quic_spdy_client_session.cc[diff]
• net/tools/quic/quic_spdy_client_stream.cc[diff]
• net/tools/quic/quic_spdy_client_stream_test.cc[diff]
• net/tools/quic/quic_time_wait_list_manager.cc[diff]
• net/tools/quic/quic_time_wait_list_manager_test.cc[diff]
• net/tools/quic/stateless_rejector.cc[diff]
• net/tools/quic/synchronous_host_resolver.cc[diff]
• net/tools/quic/test_tools/limited_mtu_test_writer.cc[diff]
• net/tools/quic/test_tools/mock_epoll_server.cc[diff]
• net/tools/quic/test_tools/mock_quic_session_visitor.cc[diff]
• net/tools/quic/test_tools/mock_quic_time_wait_list_manager.cc[diff]
• net/tools/quic/test_tools/packet_dropping_test_writer.cc[diff]
• net/tools/quic/test_tools/packet_reordering_writer.cc[diff]
• net/tools/quic/test_tools/quic_test_client.cc[diff]
• net/tools/quic/test_tools/server_thread.cc[diff]
• net/tools/transport_security_state_generator/bit_writer.cc[diff]
• net/tools/transport_security_state_generator/huffman/huffman_builder.cc[diff]
• net/tools/transport_security_state_generator/pinset.cc[diff]
• net/tools/transport_security_state_generator/pinsets.cc[diff]
• net/tools/transport_security_state_generator/preloaded_state_generator.cc[diff]
• net/tools/transport_security_state_generator/spki_hash.cc[diff]
• net/tools/transport_security_state_generator/transport_security_state_entry.cc[diff]
• net/tools/transport_security_state_generator/trie/trie_bit_buffer.cc[diff]
• net/tools/transport_security_state_generator/trie/trie_writer.cc[diff]
• net/url_request/data_protocol_handler.cc[diff]
• net/url_request/file_protocol_handler.cc[diff]
• net/url_request/ftp_protocol_handler.cc[diff]
• net/url_request/network_error_logging_delegate.cc[diff]
• net/url_request/redirect_info.cc[diff]
• net/url_request/report_sender.cc[diff]
• net/url_request/report_sender_unittest.cc[diff]
• net/url_request/static_http_user_agent_settings.cc[diff]
• net/url_request/test_url_fetcher_factory.cc[diff]
• net/url_request/test_url_request_interceptor.cc[diff]
• net/url_request/url_fetcher.cc[diff]
• net/url_request/url_fetcher_core.cc[diff]
• net/url_request/url_fetcher_delegate.cc[diff]
• net/url_request/url_fetcher_impl_unittest.cc[diff]
• net/url_request/url_fetcher_response_writer.cc[diff]
• net/url_request/url_range_request_job.cc[diff]
• net/url_request/url_request_context_builder.cc[diff]
• net/url_request/url_request_context_builder_unittest.cc[diff]
• net/url_request/url_request_context_getter.cc[diff]
• net/url_request/url_request_context_storage.cc[diff]
• net/url_request/url_request_data_job.cc[diff]
• net/url_request/url_request_error_job.cc[diff]
• net/url_request/url_request_file_dir_job.cc[diff]
• net/url_request/url_request_file_dir_job_unittest.cc[diff]
• net/url_request/url_request_file_job.cc[diff]
• net/url_request/url_request_file_job_unittest.cc[diff]
• net/url_request/url_request_filter_unittest.cc[diff]
• net/url_request/url_request_ftp_job.cc[diff]
• net/url_request/url_request_ftp_job_unittest.cc[diff]
• net/url_request/url_request_http_job_unittest.cc[diff]
• net/url_request/url_request_interceptor.cc[diff]
• net/url_request/url_request_job.cc[diff]
• net/url_request/url_request_job_factory.cc[diff]
• net/url_request/url_request_job_factory_impl.cc[diff]
• net/url_request/url_request_job_factory_impl_unittest.cc[diff]
• net/url_request/url_request_job_manager.cc[diff]
• net/url_request/url_request_redirect_job.cc[diff]
• net/url_request/url_request_simple_job.cc[diff]
• net/url_request/url_request_simple_job_unittest.cc[diff]
• net/url_request/url_request_test_util.cc[diff]
• net/url_request/url_request_throttler_entry.cc[diff]
• net/url_request/url_request_throttler_simulation_unittest.cc[diff]
• net/url_request/url_request_throttler_test_support.cc[diff]
• net/url_request/url_request_throttler_unittest.cc[diff]
• net/url_request/url_request_unittest.cc[diff]