Convert //tools to use std::unique_ptr

tools/gn/ninja_binary_target_writer_unittest.cc

 // Copyright (c) 2013 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.
 
 #include "tools/gn/ninja_binary_target_writer.h"
 
 #include <sstream>
 #include <utility>
 
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 458 matching lines @@
   TestWithScope setup;
 
   // A precompiled header toolchain.
   Settings pch_settings(setup.build_settings(), "withpch/");
   Toolchain pch_toolchain(&pch_settings,
                           Label(SourceDir("//toolchain/"), "withpch"));
   pch_settings.set_toolchain_label(pch_toolchain.label());
   pch_settings.set_default_toolchain_label(setup.toolchain()->label());
 
   // Declare a C++ compiler that supports PCH.
-  scoped_ptr<Tool> cxx_tool(new Tool);
+  std::unique_ptr<Tool> cxx_tool(new Tool);
   TestWithScope::SetCommandForTool(
       "c++ {{source}} {{cflags}} {{cflags_cc}} {{defines}} {{include_dirs}} "
       "-o {{output}}",
       cxx_tool.get());
   cxx_tool->set_outputs(SubstitutionList::MakeForTest(
       "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o"));
   cxx_tool->set_precompiled_header_type(Tool::PCH_MSVC);
   pch_toolchain.SetTool(Toolchain::TYPE_CXX, std::move(cxx_tool));
 
   // Add a C compiler as well.
-  scoped_ptr<Tool> cc_tool(new Tool);
+  std::unique_ptr<Tool> cc_tool(new Tool);
   TestWithScope::SetCommandForTool(
       "cc {{source}} {{cflags}} {{cflags_c}} {{defines}} {{include_dirs}} "
       "-o {{output}}",
       cc_tool.get());
   cc_tool->set_outputs(SubstitutionList::MakeForTest(
       "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o"));
   cc_tool->set_precompiled_header_type(Tool::PCH_MSVC);
   pch_toolchain.SetTool(Toolchain::TYPE_CC, std::move(cc_tool));
   pch_toolchain.ToolchainSetupComplete();
 
@@ skipping 96 matching lines @@
   TestWithScope setup;
 
   // A precompiled header toolchain.
   Settings pch_settings(setup.build_settings(), "withpch/");
   Toolchain pch_toolchain(&pch_settings,
                           Label(SourceDir("//toolchain/"), "withpch"));
   pch_settings.set_toolchain_label(pch_toolchain.label());
   pch_settings.set_default_toolchain_label(setup.toolchain()->label());
 
   // Declare a C++ compiler that supports PCH.
-  scoped_ptr<Tool> cxx_tool(new Tool);
+  std::unique_ptr<Tool> cxx_tool(new Tool);
   TestWithScope::SetCommandForTool(
       "c++ {{source}} {{cflags}} {{cflags_cc}} {{defines}} {{include_dirs}} "
       "-o {{output}}",
       cxx_tool.get());
   cxx_tool->set_outputs(SubstitutionList::MakeForTest(
       "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o"));
   cxx_tool->set_precompiled_header_type(Tool::PCH_GCC);
   pch_toolchain.SetTool(Toolchain::TYPE_CXX, std::move(cxx_tool));
   pch_toolchain.ToolchainSetupComplete();
 
   // Add a C compiler as well.
-  scoped_ptr<Tool> cc_tool(new Tool);
+  std::unique_ptr<Tool> cc_tool(new Tool);
   TestWithScope::SetCommandForTool(
       "cc {{source}} {{cflags}} {{cflags_c}} {{defines}} {{include_dirs}} "
       "-o {{output}}",
       cc_tool.get());
   cc_tool->set_outputs(SubstitutionList::MakeForTest(
       "{{source_out_dir}}/{{target_output_name}}.{{source_name_part}}.o"));
   cc_tool->set_precompiled_header_type(Tool::PCH_GCC);
   pch_toolchain.SetTool(Toolchain::TYPE_CC, std::move(cc_tool));
   pch_toolchain.ToolchainSetupComplete();
 
@@ skipping 97 matching lines @@
 
   EXPECT_FALSE(scheduler.is_failed());
 
   std::ostringstream out;
   NinjaBinaryTargetWriter writer(&target, out);
   writer.Run();
 
   // Should have issued an error.
   EXPECT_TRUE(scheduler.is_failed());
 }