GN threading refactor

tools/gn/scope.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 "tools/gn/scope.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "tools/gn/parse_tree.h"
 
 namespace {
 
 // FLags set in the mode_flags_ of a scope. If a bit is set, it applies
 // recursively to all dependent scopes.
 const unsigned kProcessingBuildConfigFlag = 1;
-const unsigned kProcessingDefaultBuildConfigFlag = 2;
-const unsigned kProcessingImportFlag = 4;
+const unsigned kProcessingImportFlag = 2;
 
 }  // namespace
 
 Scope::Scope(const Settings* settings)
     : const_containing_(NULL),
       mutable_containing_(NULL),
       settings_(settings),
       mode_flags_(0) {
 }
 
@@ skipping 268 matching lines @@
 }
 
 bool Scope::IsProcessingBuildConfig() const {
   if (mode_flags_ & kProcessingBuildConfigFlag)
     return true;
   if (containing())
     return containing()->IsProcessingBuildConfig();
   return false;
 }
 
-void Scope::SetProcessingDefaultBuildConfig() {
-  DCHECK((mode_flags_ & kProcessingDefaultBuildConfigFlag) == 0);
-  mode_flags_ |= kProcessingDefaultBuildConfigFlag;
-}
-
-void Scope::ClearProcessingDefaultBuildConfig() {
-  DCHECK(mode_flags_ & kProcessingDefaultBuildConfigFlag);
-  mode_flags_ &= ~(kProcessingDefaultBuildConfigFlag);
-}
-
-bool Scope::IsProcessingDefaultBuildConfig() const {
-  if (mode_flags_ & kProcessingDefaultBuildConfigFlag)
-    return true;
-  if (containing())
-    return containing()->IsProcessingDefaultBuildConfig();
-  return false;
-}
-
 void Scope::SetProcessingImport() {
   DCHECK((mode_flags_ & kProcessingImportFlag) == 0);
   mode_flags_ |= kProcessingImportFlag;
 }
 
 void Scope::ClearProcessingImport() {
   DCHECK(mode_flags_ & kProcessingImportFlag);
   mode_flags_ &= ~(kProcessingImportFlag);
 }
 
@@ skipping 35 matching lines @@
 }
 
 void Scope::AddProvider(ProgrammaticProvider* p) {
   programmatic_providers_.insert(p);
 }
 
 void Scope::RemoveProvider(ProgrammaticProvider* p) {
   DCHECK(programmatic_providers_.find(p) != programmatic_providers_.end());
   programmatic_providers_.erase(p);
 }