patch from chinmaygarde@ to make progress on mac, ios.

base/test/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/ui.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
@@ skipping 19 matching lines @@
     "gtest_util.cc",
     "gtest_util.h",
     "gtest_xml_unittest_result_printer.cc",
     "gtest_xml_unittest_result_printer.h",
     "gtest_xml_util.cc",
     "gtest_xml_util.h",
     "histogram_tester.cc",
     "histogram_tester.h",
     "ios/wait_util.h",
     "ios/wait_util.mm",
-    "launcher/test_launcher.cc",
     "launcher/test_launcher.h",
     "launcher/test_result.cc",
     "launcher/test_result.h",
-    "launcher/test_results_tracker.cc",
     "launcher/test_results_tracker.h",
-    "launcher/unit_test_launcher.cc",
     "launcher/unit_test_launcher.h",
-    "launcher/unit_test_launcher_ios.cc",
     "mock_chrome_application_mac.h",
     "mock_chrome_application_mac.mm",
     "mock_devices_changed_observer.cc",
     "mock_devices_changed_observer.h",
     "mock_entropy_provider.cc",
     "mock_entropy_provider.h",
     "mock_log.cc",
     "mock_log.h",
-    "multiprocess_test.cc",
     "multiprocess_test.h",
-    "multiprocess_test_android.cc",
     "null_task_runner.cc",
     "null_task_runner.h",
     "opaque_ref_counted.cc",
     "opaque_ref_counted.h",
     "perf_log.cc",
     "perf_log.h",
     "perf_test_suite.cc",
     "perf_test_suite.h",
     "perf_time_logger.cc",
     "perf_time_logger.h",
@@ skipping 49 matching lines @@
     "trace_event_analyzer.cc",
     "trace_event_analyzer.h",
     "trace_to_file.cc",
     "trace_to_file.h",
     "user_action_tester.cc",
     "user_action_tester.h",
     "values_test_util.cc",
     "values_test_util.h",
   ]
 
+  if (is_ios) {
+    sources += [ "launcher/unit_test_launcher_ios.cc" ]
+  } else {
+    sources += [
+      "launcher/test_launcher.cc",
+      "launcher/test_results_tracker.cc",
+      "launcher/unit_test_launcher.cc",
+      "multiprocess_test.cc",
+      "multiprocess_test_android.cc",
+    ]
+  }
+
   configs += [ "//build/config:precompiled_headers" ]
 
   data = [
     # The isolate needs this script for setting up the test. It's not actually
     # needed to run this target locally.
     "//testing/test_env.py",
   ]
 
   public_deps = [
     ":test_config",
     "//base",
     "//base:i18n",
     "//base:base_static",
   ]
   deps = [
     "//base/third_party/dynamic_annotations",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/libxml",
     "//third_party/icu:icuuc",
   ]
 
   if (!is_posix) {
     sources -= [
       "scoped_locale.cc",
       "scoped_locale.h",
     ]
   }
+
   if (is_ios) {
-    # iOS uses its own unit test launcher.
-    sources -= [ "launcher/unit_test_launcher.cc" ]
-
-    # Pull in specific Mac files for iOS (which have been filtered out
-    # by file name rules).
     set_sources_assignment_filter([])
     sources += [ "test_file_util_mac.cc" ]
+    set_sources_assignment_filter(sources_assignment_filter)
   }
 
   if (is_android) {
     deps += [ ":base_unittests_jni_headers" ]
   }
 }
 
 config("perf_test_config") {
   defines = [ "PERF_TEST" ]
 }
@@ skipping 36 matching lines @@
 
 if (is_android) {
   generate_jni("base_unittests_jni_headers") {
     sources = [
       "android/java/src/org/chromium/base/ContentUriTestUtils.java",
       "android/java/src/org/chromium/base/TestUiThread.java",
     ]
     jni_package = "base"
   }
 }