Implement utility-side proxy resolver Mojo service.

net/BUILD.gn

 # Copyright (c) 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.
 
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/module_args/v8.gni")
 import("//url/config.gni")
 import("//testing/test.gni")
@@ skipping 790 matching lines @@
       "//base",
       "//net/interfaces",
       "//third_party/mojo/src/mojo/public/cpp/bindings",
     ]
   }
 
   source_set("mojo_type_converters") {
     sources = [
       "dns/mojo_type_converters.cc",
       "dns/mojo_type_converters.h",
+      "proxy/mojo_type_converters.cc",
+      "proxy/mojo_type_converters.h",
     ]
 
     public_deps = [
       ":net",
       "//net/interfaces",
       "//third_party/mojo/src/mojo/public/cpp/bindings",
     ]
   }
+
+  source_set("net_utility_services") {
+    sources = [
+      "proxy/mojo_proxy_resolver_impl.cc",
+      "proxy/mojo_proxy_resolver_impl.h",
+    ]
+
+    public_deps = [
+      ":mojo_type_converters",
+      ":net",
+      "//mojo/common",
+      "//net/interfaces",
+      "//third_party/mojo/src/mojo/public/cpp/bindings",
+    ]
+  }
 }
 
 if (!is_ios && !is_android) {
   executable("crash_cache") {
     testonly = true
     sources = [
       "tools/crash_cache/crash_cache.cc",
     ]
 
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
@@ skipping 533 matching lines @@
     } else {
       sources -= [
         "proxy/proxy_resolver_v8_tracing_unittest.cc",
         "proxy/proxy_resolver_v8_unittest.cc",
       ]
     }
 
     if (use_v8_in_net && !is_android) {
       deps += [
         ":net_browser_services",
+        ":net_utility_services",
         "//mojo/environment:chromium",
         "//third_party/mojo/src/mojo/edk/system",
       ]
     } else {
-      sources -= [ "dns/mojo_host_resolver_impl_unittest.cc" ]
+      sources -= [
+        "dns/mojo_host_resolver_impl_unittest.cc",
+        "proxy/mojo_proxy_resolver_impl_unittest.cc",
+      ]
     }
 
     if (!enable_mdns) {
       sources -= [
         "dns/mdns_cache_unittest.cc",
         "dns/mdns_client_unittest.cc",
         "dns/record_parsed_unittest.cc",
         "dns/record_rdata_unittest.cc",
       ]
     }
@@ skipping 77 matching lines @@
       "quic/quic_server_bin.cc",
     ]
     deps = [
       ":quic_tools",
       ":net",
       "//base",
       "//third_party/boringssl",
     ]
   }
 }  # !is_android && !is_win && !is_mac