GN: Tighten up test target visibility + refactorings

webrtc/base/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/crypto.gni")
 import("//build/config/ui.gni")
@@ skipping 718 matching lines @@
     ]
 
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 
   rtc_source_set("rtc_base_nonparallel_tests") {
     testonly = true
+    if (!is_android && !is_ios) {  # Generated targets makes this check break.
+      visibility = [ "//webrtc:webrtc_nonparallel_tests" ]
+    }
     sources = [
       "cpu_time_unittest.cc",
       "filerotatingstream_unittest.cc",
       "nullsocketserver_unittest.cc",
       "physicalsocketserver_unittest.cc",
       "socket_unittest.cc",
       "socket_unittest.h",
       "socketaddress_unittest.cc",
       "virtualsocket_unittest.cc",
     ]
     deps = [
       ":rtc_base",
       ":rtc_base_tests_main",
       "//testing/gtest",
     ]
     if (is_win) {
       sources += [ "win32socketserver_unittest.cc" ]
     }
 
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 
   rtc_source_set("rtc_base_approved_unittests") {
     testonly = true
+    if (!is_android && !is_ios) {  # Generated targets makes this check break.
+      visibility = [ "//webrtc:rtc_unittests" ]
+    }
     sources = [
       "array_view_unittest.cc",
       "atomicops_unittest.cc",
       "base64_unittest.cc",
       "basictypes_unittest.cc",
       "bind_unittest.cc",
       "bitbuffer_unittest.cc",
       "buffer_unittest.cc",
       "bufferqueue_unittest.cc",
       "bytebuffer_unittest.cc",
@@ skipping 31 matching lines @@
       ":rtc_base_tests_main",
     ]
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 
   rtc_source_set("rtc_task_queue_unittests") {
     testonly = true
+    if (!is_android && !is_ios) {  # Generated targets makes this check break.
+      visibility = [ "//webrtc:rtc_unittests" ]
+    }
     sources = [
       "sequenced_task_checker_unittest.cc",
       "task_queue_unittest.cc",
       "weak_ptr_unittest.cc",
     ]
     deps = [
       ":rtc_base_tests_main",
       ":rtc_task_queue",
     ]
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 
   rtc_source_set("rtc_numerics_unittests") {
     testonly = true
+    if (!is_android && !is_ios) {  # Generated targets makes this check break.
+      visibility = [ "//webrtc:rtc_unittests" ]
+    }
     sources = [
       "numerics/exp_filter_unittest.cc",
       "numerics/percentile_filter_unittest.cc",
     ]
     deps = [
       ":rtc_base_tests_main",
       ":rtc_numerics",
     ]
   }
 
   config("rtc_base_unittests_config") {
     if (is_clang) {
       cflags = [ "-Wno-unused-const-variable" ]
     }
   }
   rtc_source_set("rtc_base_unittests") {
     testonly = true
+    if (!is_android && !is_ios) {  # Generated targets makes this check break.
+      visibility = [ "//webrtc:rtc_unittests" ]
+    }
     sources = [
       "callback_unittest.cc",
       "crc32_unittest.cc",
       "fileutils_unittest.cc",
       "helpers_unittest.cc",
       "httpbase_unittest.cc",
       "httpcommon_unittest.cc",
       "httpserver_unittest.cc",
       "ipaddress_unittest.cc",
       "memory_usage_unittest.cc",
@@ skipping 50 matching lines @@
 
 if (is_android) {
   android_library("base_java") {
     java_files = [
       "java/src/org/webrtc/Logging.java",
       "java/src/org/webrtc/Size.java",
       "java/src/org/webrtc/ThreadUtils.java",
     ]
   }
 }