Convert //tools to use std::unique_ptr

tools/gn/function_toolchain.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 <algorithm>
 #include <limits>
 #include <utility>
 
 #include "tools/gn/err.h"
 #include "tools/gn/functions.h"
@@ skipping 306 matching lines @@
   // Note that we don't want to use MakeLabelForScope since that will include
   // the toolchain name in the label, and toolchain labels don't themselves
   // have toolchain names.
   const SourceDir& input_dir = scope->GetSourceDir();
   Label label(input_dir, args[0].string_value());
   if (g_scheduler->verbose_logging())
     g_scheduler->Log("Defining toolchain", label.GetUserVisibleName(false));
 
   // This object will actually be copied into the one owned by the toolchain
   // manager, but that has to be done in the lock.
-  scoped_ptr<Toolchain> toolchain(new Toolchain(scope->settings(), label));
+  std::unique_ptr<Toolchain> toolchain(new Toolchain(scope->settings(), label));
   toolchain->set_defined_from(function);
   toolchain->visibility().SetPublic();
 
   Scope block_scope(scope);
   block_scope.SetProperty(&kToolchainPropertyKey, toolchain.get());
   block->Execute(&block_scope, err);
   block_scope.SetProperty(&kToolchainPropertyKey, nullptr);
   if (err->has_error())
     return Value();
 
@@ skipping 495 matching lines @@
     subst_validator = &IsValidCopySubstitution;
     subst_output_validator = &IsValidCopySubstitution;
   } else if (tool_type == Toolchain::TYPE_COMPILE_XCASSETS) {
     subst_validator = &IsValidCompileXCassetsSubstitution;
     subst_output_validator = &IsValidCompileXCassetsSubstitution;
   } else {
     subst_validator = &IsValidToolSubstitution;
     subst_output_validator = &IsValidToolSubstitution;
   }
 
-  scoped_ptr<Tool> tool(new Tool);
+  std::unique_ptr<Tool> tool(new Tool);
 
   if (!ReadPattern(&block_scope, "command", subst_validator, tool.get(),
                    &Tool::set_command, err) ||
       !ReadOutputExtension(&block_scope, tool.get(), err) ||
       !ReadPattern(&block_scope, "depfile", subst_validator, tool.get(),
                    &Tool::set_depfile, err) ||
       !ReadDepsFormat(&block_scope, tool.get(), err) ||
       !ReadPattern(&block_scope, "description", subst_validator, tool.get(),
                    &Tool::set_description, err) ||
       !ReadString(&block_scope, "lib_switch", tool.get(), &Tool::set_lib_switch,
@@ skipping 155 matching lines @@
     return Value();
 
   Scope::KeyValueMap values;
   block_scope.GetCurrentScopeValues(&values);
   toolchain->args() = values;
 
   return Value();
 }
 
 }  // namespace functions