Improve performance of proxy resolver by tracing DNS dependencies.

net/net.gyp

 # Copyright 2013 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.
 
 {
   'variables': {
     'chromium_code': 1,
 
     'linux_link_kerberos%': 0,
     'conditions': [
@@ skipping 615 matching lines @@
         'proxy/proxy_config_service_win.cc',
         'proxy/proxy_config_service_win.h',
         'proxy/proxy_config_source.cc',
         'proxy/proxy_config_source.h',
         'proxy/proxy_info.cc',
         'proxy/proxy_info.h',
         'proxy/proxy_list.cc',
         'proxy/proxy_list.h',
         'proxy/proxy_resolver.h',
         'proxy/proxy_resolver_error_observer.h',
-        'proxy/proxy_resolver_js_bindings.cc',
-        'proxy/proxy_resolver_js_bindings.h',
         'proxy/proxy_resolver_mac.cc',
         'proxy/proxy_resolver_mac.h',
-        'proxy/proxy_resolver_request_context.h',
         'proxy/proxy_resolver_script.h',
         'proxy/proxy_resolver_script_data.cc',
         'proxy/proxy_resolver_script_data.h',
         'proxy/proxy_resolver_winhttp.cc',
         'proxy/proxy_resolver_winhttp.h',
         'proxy/proxy_retry_info.h',
         'proxy/proxy_script_decider.cc',
         'proxy/proxy_script_decider.h',
         'proxy/proxy_script_fetcher.h',
         'proxy/proxy_script_fetcher_impl.cc',
         'proxy/proxy_script_fetcher_impl.h',
         'proxy/proxy_server.cc',
         'proxy/proxy_server.h',
         'proxy/proxy_server_mac.cc',
         'proxy/proxy_service.cc',
         'proxy/proxy_service.h',
-        'proxy/sync_host_resolver.h',
-        'proxy/sync_host_resolver_bridge.cc',
-        'proxy/sync_host_resolver_bridge.h',
         'quic/congestion_control/cubic.cc',
         'quic/congestion_control/cubic.h',
         'quic/congestion_control/fix_rate_receiver.cc',
         'quic/congestion_control/fix_rate_receiver.h',
         'quic/congestion_control/fix_rate_sender.cc',
         'quic/congestion_control/fix_rate_sender.h',
         'quic/congestion_control/hybrid_slow_start.cc',
         'quic/congestion_control/hybrid_slow_start.h',
         'quic/congestion_control/leaky_bucket.cc',
         'quic/congestion_control/leaky_bucket.h',
@@ skipping 797 matching lines @@
         'proxy/dhcp_proxy_script_fetcher_win_unittest.cc',
         'proxy/multi_threaded_proxy_resolver_unittest.cc',
         'proxy/network_delegate_error_observer_unittest.cc',
         'proxy/proxy_bypass_rules_unittest.cc',
         'proxy/proxy_config_service_android_unittest.cc',
         'proxy/proxy_config_service_linux_unittest.cc',
         'proxy/proxy_config_service_win_unittest.cc',
         'proxy/proxy_config_unittest.cc',
         'proxy/proxy_info_unittest.cc',
         'proxy/proxy_list_unittest.cc',
-        'proxy/proxy_resolver_js_bindings_unittest.cc',
+        'proxy/proxy_resolver_v8_tracing_unittest.cc',
         'proxy/proxy_resolver_v8_unittest.cc',
         'proxy/proxy_script_decider_unittest.cc',
         'proxy/proxy_script_fetcher_impl_unittest.cc',
         'proxy/proxy_server_unittest.cc',
         'proxy/proxy_service_unittest.cc',
-        'proxy/sync_host_resolver_bridge_unittest.cc',
         'quic/congestion_control/cubic_test.cc',
         'quic/congestion_control/fix_rate_test.cc',
         'quic/congestion_control/hybrid_slow_start_test.cc',
         'quic/congestion_control/leaky_bucket_test.cc',
         'quic/congestion_control/paced_sender_test.cc',
         'quic/congestion_control/quic_receipt_metrics_collector_test.cc',
         'quic/congestion_control/quic_send_scheduler_test.cc',
         'quic/congestion_control/tcp_cubic_sender_test.cc',
         'quic/congestion_control/tcp_receiver_test.cc',
         'quic/crypto/crypto_framer_test.cc',
@@ skipping 199 matching lines @@
             ],
           },
         ],
         [ 'use_v8_in_net==1', {
             'dependencies': [
               'net_with_v8',
             ],
           }, {  # else: !use_v8_in_net
             'sources!': [
               'proxy/proxy_resolver_v8_unittest.cc',
+              'proxy/proxy_resolver_v8_tracing_unittest.cc',
             ],
           },
         ],
         [ 'OS == "win"', {
             'sources!': [
               'dns/dns_config_service_posix_unittest.cc',
               'http/http_auth_gssapi_posix_unittest.cc',
             ],
             # This is needed to trigger the dll copy step on windows.
             # TODO(mark): Specifying this here shouldn't be necessary.
@@ skipping 349 matching lines @@
             '../build/temp_gyp/googleurl.gyp:googleurl',
             '../v8/tools/gyp/v8.gyp:v8',
             'net'
           ],
           'defines': [
             'NET_IMPLEMENTATION',
           ],
           'sources': [
             'proxy/proxy_resolver_v8.cc',
             'proxy/proxy_resolver_v8.h',
+            'proxy/proxy_resolver_v8_tracing.cc',
+            'proxy/proxy_resolver_v8_tracing.h',
             'proxy/proxy_service_v8.cc',
             'proxy/proxy_service_v8.h',
           ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [4267, ],
         },
       ],
     }],
     ['OS != "ios"', {
       'targets': [
@@ skipping 371 matching lines @@
                 '--result', '<@(_outputs)',
                 '--isolate', 'net_unittests.isolate',
               ],
             },
           ],
         },
       ],
     }],
   ],
 }