[iOS/GN] Fix the compilation of "all" on iOS with gn.

mojo/edk/system/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("//testing/test.gni")
 import("../../../mojo/public/tools/bindings/mojom.gni")
 
 if (is_android) {
   import("//build/config/android/config.gni")
   import("//build/config/android/rules.gni")
@@ skipping 103 matching lines @@
       "mach_port_relay.h",
     ]
   }
 
   allow_circular_includes_from = [ "//mojo/edk/embedder" ]
 }
 
 group("tests") {
   testonly = true
   deps = [
-    ":mojo_message_pipe_perftests",
     ":mojo_system_unittests",
   ]
+
+  if (!is_ios) {
+    deps += [ ":mojo_message_pipe_perftests" ]
+  }
 }
 
 source_set("test_utils") {
   testonly = true
 
   sources = [
     "test_utils.cc",
     "test_utils.h",
   ]
 
   public_deps = [
     "//mojo/public/c/system",
     "//mojo/public/cpp/system",
   ]
 
   deps = [
     "//base",
     "//base/test:test_support",
     "//mojo/edk/test:test_support",
     "//testing/gtest:gtest",
   ]
 }
 
 test("mojo_system_unittests") {
   sources = [
     "awakable_list_unittest.cc",
     "core_test_base.cc",
     "core_test_base.h",
     "core_unittest.cc",
-    "data_pipe_unittest.cc",
     "message_pipe_unittest.cc",
     "options_validation_unittest.cc",
     "platform_handle_dispatcher_unittest.cc",
     "shared_buffer_dispatcher_unittest.cc",
     "shared_buffer_unittest.cc",
     "wait_set_dispatcher_unittest.cc",
     "waiter_test_utils.cc",
     "waiter_test_utils.h",
     "waiter_unittest.cc",
     "watch_unittest.cc",
   ]
 
   if (!is_ios) {
-    sources += [ "multiprocess_message_pipe_unittest.cc" ]
+    sources += [
+      "data_pipe_unittest.cc",
+      "multiprocess_message_pipe_unittest.cc",
+    ]
   }
 
   deps = [
     ":test_utils",
     "//base",
     "//base/test:test_support",
     "//mojo/edk/embedder:embedder_unittests",
     "//mojo/edk/system",
     "//mojo/edk/system/ports:tests",
     "//mojo/edk/test:run_all_unittests",
     "//mojo/edk/test:test_support",
     "//testing/gtest",
   ]
 
   allow_circular_includes_from = [ "//mojo/edk/embedder:embedder_unittests" ]
 }
 
-test("mojo_message_pipe_perftests") {
-  sources = [
-    "message_pipe_perftest.cc",
-  ]
+if (!is_ios) {
+  test("mojo_message_pipe_perftests") {
+    sources = [
+      "message_pipe_perftest.cc",
+    ]
 
-  deps = [
-    ":test_utils",
-    "//base",
-    "//base/test:test_support",
-    "//mojo/edk/system",
-    "//mojo/edk/test:run_all_perftests",
-    "//mojo/edk/test:test_support",
-    "//testing/gtest",
-  ]
+    deps = [
+      ":test_utils",
+      "//base",
+      "//base/test:test_support",
+      "//mojo/edk/system",
+      "//mojo/edk/test:run_all_perftests",
+      "//mojo/edk/test:test_support",
+      "//testing/gtest",
+    ]
+  }
 }