Convert Pass()→std::move() in //tools

tools/gn/target_unittest.cc

Index: tools/gn/target_unittest.cc
diff --git a/tools/gn/target_unittest.cc b/tools/gn/target_unittest.cc
index 986fa658e106d1e8a28cad4db37b02911940e0e3..4d9b1da8b8fa56c14cf1cac8d12ed9fa9621768d 100644
--- a/tools/gn/target_unittest.cc
+++ b/tools/gn/target_unittest.cc
@@ -2,12 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "tools/gn/target.h"
+
+#include <utility>
+
 #include "testing/gtest/include/gtest/gtest.h"
 #include "tools/gn/build_settings.h"
 #include "tools/gn/config.h"
 #include "tools/gn/scheduler.h"
 #include "tools/gn/settings.h"
-#include "tools/gn/target.h"
 #include "tools/gn/test_with_scope.h"
 #include "tools/gn/toolchain.h"
 
@@ -445,7 +448,7 @@ TEST(Target, LinkAndDepOutputs) {
   solink_tool->set_outputs(SubstitutionList::MakeForTest(
       kLinkPattern, kDependPattern));
 
-  toolchain.SetTool(Toolchain::TYPE_SOLINK, solink_tool.Pass());
+  toolchain.SetTool(Toolchain::TYPE_SOLINK, std::move(solink_tool));
 
   Target target(setup.settings(), Label(SourceDir("//a/"), "a"));
   target.set_output_type(Target::SHARED_LIBRARY);