Use RTC_DISALLOW_COPY_AND_ASSIGN in webrtc/base/sigslottester.h

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 721 matching lines @@
       # Also use this as a convenient dumping ground for misc files that are
       # included by multiple targets below.
       "fakeclock.cc",
       "fakeclock.h",
       "fakenetwork.h",
       "fakesslidentity.h",
       "faketaskrunner.h",
       "firewallsocketserver.cc",
       "firewallsocketserver.h",
       "gunit.h",
+      "sigslottester.h",
+      "sigslottester.h.pump",
       "testbase64.h",
       "testechoserver.h",
       "testutils.h",
       "timedelta.h",
       "unittest_main.cc",
     ]
     configs += [ ":rtc_base_tests_utils_warnings_config" ]
     public_configs = [ ":rtc_base_tests_utils_exported_config" ]
     deps = [
       ":rtc_base",
@@ skipping 21 matching lines @@
 
     deps = [
       "//base:base_java",
     ]
 
     data = [
       "//webrtc/build/android/test_runner.py",
     ]
   }
 }