GN: toolchain threading cleanup

tools/gn/target.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_TARGET_H_
 #define TOOLS_GN_TARGET_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 40 matching lines @@
   virtual const Target* AsTarget() const OVERRIDE;
   virtual void OnResolved() OVERRIDE;
 
   // This flag indicates if we've run the TargetGenerator for this target to
   // fill out the rest of the values. Once we've done this, we save the
   // location of the function that started the generating so that we can detect
   // duplicate declarations.
   bool HasBeenGenerated() const;
   void SetGenerated(const Token* token);
 
-  const Settings* settings() const { return settings_; }
-
   OutputType output_type() const { return output_type_; }
   void set_output_type(OutputType t) { output_type_ = t; }
 
   bool IsLinkable() const;
 
   // Will be the empty string to use the target label as the output name.
   const std::string& output_name() const { return output_name_; }
   void set_output_name(const std::string& name) { output_name_ = name; }
 
   const FileList& sources() const { return sources_; }
@@ skipping 69 matching lines @@
   const OrderedSet<std::string>& all_libs() const { return all_libs_; }
 
   const SourceFile& gyp_file() const { return gyp_file_; }
   void set_gyp_file(const SourceFile& gf) { gyp_file_ = gf; }
 
  private:
   // Pulls necessary information from dependents to this one when all
   // dependencies have been resolved.
   void PullDependentTargetInfo(std::set<const Config*>* unique_configs);
 
-  const Settings* settings_;
   OutputType output_type_;
   std::string output_name_;
 
   FileList sources_;
   FileList source_prereqs_;
   FileList data_;
 
   bool hard_dep_;
 
   // Note that if there are any groups in the deps, once the target is resolved
@@ skipping 32 matching lines @@
 
   SourceFile gyp_file_;
 
   bool generated_;
   const Token* generator_function_;  // Who generated this: for error messages.
 
   DISALLOW_COPY_AND_ASSIGN(Target);
 };
 
 #endif  // TOOLS_GN_TARGET_H_