Add GN isolate support for a bunch of unittests.

url/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("//testing/test.gni")
 import("//url/config.gni")
 
 # Sets the USE_ICU_ALTERNATIVES_ON_ANDROID define based on the build flag.
 config("url_icu_config") {
   if (use_icu_alternatives_on_android) {
@@ skipping 77 matching lines @@
 
     sources += [
       "url_canon_icu_alternatives_android.cc",
       "url_canon_icu_alternatives_android.h",
     ]
   }
 }
 
 # TODO(dpranke): crbug.com/360936. Get this to build and run on Android.
 if (!is_android) {
+  # TODO(GYP): Delete this after we've converted everything to GN.
+  # The _run targets exist only for compatibility w/ GYP.
+  group("url_unittests_run") {
+    testonly = true
+    deps = [
+      ":url_unittests",
+    ]
+  }
+
   test("url_unittests") {
     sources = [
       "deprecated_serialized_origin_unittest.cc",
       "gurl_unittest.cc",
       "origin_unittest.cc",
       "scheme_host_port_unittest.cc",
       "url_canon_icu_unittest.cc",
       "url_canon_unittest.cc",
       "url_parse_unittest.cc",
       "url_test_utils.h",
@@ skipping 16 matching lines @@
       "//testing/gtest",
       "//third_party/icu:icuuc",
     ]
 
     if (use_icu_alternatives_on_android) {
       sources -= [ "url_canon_icu_unittest.cc" ]
       deps -= [ "//third_party/icu:icuuc" ]
     }
   }
 }