Move gn _run target generation into test().

components/BUILD.gn

 # Copyright 2014 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/features.gni")
 import("//build/config/ui.gni")
 import("//build_overrides/webrtc.gni")
 import("//testing/test.gni")
 import("//tools/grit/repack.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
-# TODO(GYP): Delete this after we've converted everything to GN.
-# The _run targets exist only for compatibility w/ GYP.
-group("components_unittests_run") {
-  testonly = true
-  deps = [
-    ":components_unittests",
-  ]
-}
-
 # To add a unit test to this target, make a "unit_test" source_set in your
 # component (it's important to use a source_set instead of a static library or
 # no tests will run) and add a reference here. You can add more than one unit
 # test target if convenient.
 test("components_unittests") {
   sources = [
     "test/run_all_unittests.cc",
   ]
 
   if (is_android || is_linux || is_mac || is_win) {
@@ skipping 285 matching lines @@
         "${target_gen_dir}/components_browsertests_manifest/AndroidManifest.xml"
   }
 
   android_resources("components_browsertests_resources") {
     testonly = true
     resource_dirs = [ "//components/test/android/browsertests_apk/res" ]
     custom_package = "org.chromium.components_browsertests_apk"
   }
 }
 
-# TODO(GYP): Delete this after we've converted everything to GN.
-# The _run targets exist only for compatibility w/ GYP.
-group("components_browsertests_run") {
-  testonly = true
-  deps = [
-    ":components_browsertests",
-  ]
-}
-
 test("components_browsertests") {
   sources = []
   defines = [ "HAS_OUT_OF_PROC_TEST_RUNNER" ]
   data = []
   deps = [
     "//base",
     "//base/test:test_support",
     "//components/strings",
     "//testing/gmock",
     "//testing/gtest",
@@ skipping 104 matching lines @@
   if (!is_ios) {
     deps += [
       "//base",
       "//base/test:test_support_perf",
       "//components/scheduler",
       "//components/visitedlink/browser",
       "//content/test:test_support",
     ]
   }
 }