Convert //tools to use std::unique_ptr

tools/gn/value.h

 // 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.
 
 #ifndef TOOLS_GN_VALUE_H_
 #define TOOLS_GN_VALUE_H_
 
 #include <stdint.h>
+
 #include <map>
+#include <memory>
 
 #include "base/logging.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "tools/gn/err.h"
 
 class ParseNode;
 class Scope;
 
 // Represents a variable value in the interpreter.
 class Value {
  public:
   enum Type {
     NONE = 0,
     BOOLEAN,
     INTEGER,
     STRING,
     LIST,
     SCOPE,
   };
 
   Value();
   Value(const ParseNode* origin, Type t);
   Value(const ParseNode* origin, bool bool_val);
   Value(const ParseNode* origin, int64_t int_val);
   Value(const ParseNode* origin, std::string str_val);
   Value(const ParseNode* origin, const char* str_val);
   // Values "shouldn't" have null scopes when type == Scope, so be sure to
   // always set one. However, this is not asserted since there are some
   // use-cases for creating values and immediately setting the scope on it. So
   // you can pass a null scope here if you promise to set it before any other
   // code gets it (code will generally assume the scope is not null).
-  Value(const ParseNode* origin, scoped_ptr<Scope> scope);
+  Value(const ParseNode* origin, std::unique_ptr<Scope> scope);
 
   Value(const Value& other);
   ~Value();
 
   Value& operator=(const Value& other);
 
   Type type() const { return type_; }
 
   // Returns a string describing the given type.
   static const char* DescribeType(Type t);
@@ skipping 39 matching lines @@
   }
 
   Scope* scope_value() {
     DCHECK(type_ == SCOPE);
     return scope_value_.get();
   }
   const Scope* scope_value() const {
     DCHECK(type_ == SCOPE);
     return scope_value_.get();
   }
-  void SetScopeValue(scoped_ptr<Scope> scope);
+  void SetScopeValue(std::unique_ptr<Scope> scope);
 
   // Converts the given value to a string. Returns true if strings should be
   // quoted or the ToString of a string should be the string itself. If the
   // string is quoted, it will also enable escaping.
   std::string ToString(bool quote_strings) const;
 
   // Verifies that the value is of the given type. If it isn't, returns
   // false and sets the error.
   bool VerifyTypeIs(Type t, Err* err) const;
 
   // Compares values. Only the "value" is compared, not the origin.
   bool operator==(const Value& other) const;
   bool operator!=(const Value& other) const;
 
  private:
   // This are a lot of objects associated with every Value that need
   // initialization and tear down every time. It might be more efficient to
   // create a union of ManualConstructor objects (see SmallMap) and only
   // use the one we care about.
   Type type_;
   std::string string_value_;
   bool boolean_value_;
   int64_t int_value_;
   std::vector<Value> list_value_;
-  scoped_ptr<Scope> scope_value_;
+  std::unique_ptr<Scope> scope_value_;
 
   const ParseNode* origin_;
 };
 
 #endif  // TOOLS_GN_VALUE_H_