Migrate from tr1/tuple to tuple in parametrized unit tests.

Bug: 829773

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.win:win_chrome_official
Change-Id: I0b26a5ea02c7f077285849979e5a819e31b7d503
Reviewed-on: https://chromium-review.googlesource.com/998849
Commit-Queue: Victor Costan <[email protected]>
Reviewed-by: Nico Weber <[email protected]>
Reviewed-by: Scott Violet <[email protected]>
Cr-Commit-Position: refs/heads/master@{#548878}
diff --git a/remoting/protocol/validating_authenticator_unittest.cc b/remoting/protocol/validating_authenticator_unittest.cc
index 6baddf23..75631e1 100644
--- a/remoting/protocol/validating_authenticator_unittest.cc
+++ b/remoting/protocol/validating_authenticator_unittest.cc
@@ -4,6 +4,7 @@
 
 #include <memory>
 #include <string>
+#include <tuple>
 #include <utility>
 
 #include "base/bind.h"
@@ -37,7 +38,7 @@
 ACTION_TEMPLATE(InvokeCallbackArgument,
                 HAS_1_TEMPLATE_PARAMS(int, k),
                 AND_0_VALUE_PARAMS()) {
-  ::std::tr1::get<k>(args).Run();
+  std::get<k>(args).Run();
 }
 
 }  // namespace