GN threading refactor

tools/gn/scope.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_SCOPE_H_
 #define TOOLS_GN_SCOPE_H_
 
 #include <map>
 #include <set>
 
@@ skipping 147 matching lines @@
   const Scope* GetTargetDefaults(const std::string& target_type) const;
 
   // Filter to apply when the sources variable is assigned. May return NULL.
   const PatternList* GetSourcesAssignmentFilter() const;
   void set_sources_assignment_filter(
       scoped_ptr<PatternList> f) {
     sources_assignment_filter_ = f.Pass();
   }
 
   // Indicates if we're currently processing the build configuration file.
-  // This is true when processing the config file for any toolchain. See also
-  // *ProcessingDefaultBuildConfig() below.
+  // This is true when processing the config file for any toolchain.
   //
   // To set or clear the flag, it must currently be in the opposite state in
   // the current scope. Note that querying the state of the flag recursively
   // checks all containing scopes until it reaches the top or finds the flag
   // set.
   void SetProcessingBuildConfig();
   void ClearProcessingBuildConfig();
   bool IsProcessingBuildConfig() const;
 
-  // Indicates we're currently processing the default toolchain's build
-  // configuration file.
-  void SetProcessingDefaultBuildConfig();
-  void ClearProcessingDefaultBuildConfig();
-  bool IsProcessingDefaultBuildConfig() const;
-
   // Indicates if we're currently processing an import file.
   //
   // See SetProcessingBaseConfig for how flags work.
   void SetProcessingImport();
   void ClearProcessingImport();
   bool IsProcessingImport() const;
 
   // The source directory associated with this scope. This will check embedded
   // scopes until it finds a nonempty source directory. This will default to
   // an empty dir if no containing scope has a source dir set.
@@ skipping 66 matching lines @@
 
   typedef std::set<ProgrammaticProvider*> ProviderSet;
   ProviderSet programmatic_providers_;
 
   SourceDir source_dir_;
 
   DISALLOW_COPY_AND_ASSIGN(Scope);
 };
 
 #endif  // TOOLS_GN_SCOPE_H_