Revert of Enabling `gn check` on webrtc/test

webrtc/modules/rtp_rtcp/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("../../webrtc.gni")
 
@@ skipping 193 matching lines @@
   ]
 
   # TODO(jschuh): bugs.webrtc.org/1348: fix this warning.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
   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("mock_rtp_rtcp") {
-  testonly = true
-  sources = [
-    "mocks/mock_recovered_packet_receiver.h",
-    "mocks/mock_rtcp_rtt_stats.h",
-    "mocks/mock_rtp_rtcp.h",
-  ]
-  deps = [
-    ":rtp_rtcp",
-    "..:module_api",
-    "../../base:rtc_base_approved",
-    "../../test:test_support",
-  ]
-}
-
 if (rtc_include_tests) {
   rtc_executable("test_packet_masks_metrics") {
     testonly = true
 
     sources = [
       "test/testFec/average_residual_loss_xor_codes.h",
       "test/testFec/test_packet_masks_metrics.cc",
     ]
 
     deps = [
@@ skipping 19 matching lines @@
       ":rtp_rtcp",
       "../../base:rtc_base_approved",
       "../../test:test_support",
     ]
     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("mock_rtp_rtcp") {
+    testonly = true
+    sources = [
+      "mocks/mock_recovered_packet_receiver.h",
+      "mocks/mock_rtcp_rtt_stats.h",
+      "mocks/mock_rtp_rtcp.h",
+    ]
+    deps = [
+      ":rtp_rtcp",
+      "..:module_api",
+      "../../base:rtc_base_approved",
+      "../../test:test_support",
+    ]
+  }
+
   rtc_source_set("rtp_rtcp_unittests") {
     testonly = true
 
     # Skip restricting visibility on mobile platforms since the tests on those
     # gets additional generated targets which would require many lines here to
     # cover (which would be confusing to read and hard to maintain).
     if (!is_android && !is_ios) {
       visibility = [ "//webrtc/modules:modules_unittests" ]
     }
     sources = [
@@ skipping 75 matching lines @@
     ]
 
     # TODO(jschuh): bugs.webrtc.org/1348: fix this warning.
     configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
     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" ]
     }
   }
 }