GN: Remove Value::RecursivelySetOrigin.

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 <map>
 
 #include "base/basictypes.h"
@@ skipping 37 matching lines @@
 
   Type type() const { return type_; }
 
   // Returns a string describing the given type.
   static const char* DescribeType(Type t);
 
   // Returns the node that made this. May be NULL.
   const ParseNode* origin() const { return origin_; }
   void set_origin(const ParseNode* o) { origin_ = o; }
 
-  // Sets the origin of this value, recursively going into list child
-  // values and also setting their origins.
-  void RecursivelySetOrigin(const ParseNode* o);
-
   bool& boolean_value() {
     DCHECK(type_ == BOOLEAN);
     return boolean_value_;
   }
   const bool& boolean_value() const {
     DCHECK(type_ == BOOLEAN);
     return boolean_value_;
   }
 
   int64& int_value() {
@@ skipping 55 matching lines @@
   std::string string_value_;
   bool boolean_value_;
   int64 int_value_;
   std::vector<Value> list_value_;
   scoped_ptr<Scope> scope_value_;
 
   const ParseNode* origin_;
 };
 
 #endif  // TOOLS_GN_VALUE_H_