Respect ios_automatically_manage_certs when building EG tests.

testing/test.gni

 # Copyright 2015 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.
 
 # ==============================================================================
 # TEST SETUP
 # ==============================================================================
 
 if (is_android) {
   import("//build/config/android/config.gni")
@@ skipping 199 matching lines @@
 
     # TODO(GYP_GONE): Delete this after we've converted everything to GN.
     # The _run targets exist only for compatibility w/ GYP.
     group("${target_name}_apk_run") {
       testonly = true
       deps = [
         ":${invoker.target_name}",
       ]
     }
   } else if (is_ios) {
+    import("//build/config/ios/ios_sdk.gni")
     import("//build/config/ios/rules.gni")
 
     _test_target = target_name
     _resources_bundle_data = target_name + "_resources_bundle_data"
 
     bundle_data(_resources_bundle_data) {
       visibility = [ ":$_test_target" ]
       sources = [
         "//testing/gtest_ios/Default.png",
       ]
       outputs = [
         "{{bundle_resources_dir}}/{{source_file_part}}",
       ]
     }
 
     ios_app_bundle(_test_target) {
       testonly = true
 
       # See above call.
       set_sources_assignment_filter([])
       forward_variables_from(invoker, "*", [ "testonly" ])
 
       # Provide sensible defaults in case invoker did not define any of those
       # required variables.
       if (!defined(info_plist) && !defined(info_plist_target)) {
         info_plist = "//testing/gtest_ios/unittest-Info.plist"
       }
 
-      _bundle_id_suffix = target_name
-      if (ios_automatically_manage_certs) {
-        # Use the same bundle identifier for all unit tests when managing
-        # certificates automatically as the number of free certs is limited.
-        _bundle_id_suffix = "generic-unit-test"
+      _bundle_id_suffix = ios_generic_test_bundle_id_suffix
+      if (!ios_automatically_manage_certs) {
+        _bundle_id_suffix = "${target_name}"
       }
       if (!defined(extra_substitutions)) {
         extra_substitutions = []
       }
       extra_substitutions += [ "GTEST_BUNDLE_ID_SUFFIX=$_bundle_id_suffix" ]
 
       if (!defined(deps)) {
         deps = []
       }
       deps += [
@@ skipping 43 matching lines @@
 }
 
 # Test defaults.
 set_defaults("test") {
   if (is_android) {
     configs = default_shared_library_configs
   } else {
     configs = default_executable_configs
   }
 }