Ensures that modules_unittests runs on iOS

webrtc/test/testsupport/gtest_disable.h

 /*
  *  Copyright (c) 2012 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.
  */
 #ifndef TEST_TESTSUPPORT_INCLUDE_GTEST_DISABLE_H_
@@ skipping 18 matching lines @@
 #else
 #define DISABLED_ON_MAC(test) test
 #endif
 
 #ifdef _WIN32
 #define DISABLED_ON_WIN(test) DISABLED_##test
 #else
 #define DISABLED_ON_WIN(test) test
 #endif
 
+// Using some extra magic here to be able to chain Android and iOS macros.
+// http://stackoverflow.com/questions/8231966/why-do-i-need-double-layer-of-indirection-for-macros
 #ifdef WEBRTC_ANDROID
-#define DISABLED_ON_ANDROID(test) DISABLED_##test
+#define DISABLED_ON_ANDROID_HIDDEN(test) DISABLED_##test
+#define DISABLED_ON_ANDROID(test) DISABLED_ON_ANDROID_HIDDEN(test)
 #else
-#define DISABLED_ON_ANDROID(test) test
+#define DISABLED_ON_ANDROID_HIDDEN(test) test
+#define DISABLED_ON_ANDROID(test) DISABLED_ON_ANDROID_HIDDEN(test)
+#endif
+
+#ifdef WEBRTC_IOS
+#define DISABLED_ON_IOS_HIDDEN(test) DISABLED_##test
+#define DISABLED_ON_IOS(test) DISABLED_ON_IOS_HIDDEN(test)
+#else
+#define DISABLED_ON_IOS_HIDDEN(test) test
+#define DISABLED_ON_IOS(test) DISABLED_ON_IOS_HIDDEN(test)
 #endif
 
 #endif  // TEST_TESTSUPPORT_INCLUDE_GTEST_DISABLE_H_