Windows precompiled header support in GN

tools/gn/toolchain.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/toolchain.h"
 
 #include <string.h>
 
 #include "base/logging.h"
 #include "tools/gn/target.h"
@@ skipping 84 matching lines @@
   }
 
   setup_complete_ = true;
 }
 
 // static
 Toolchain::ToolType Toolchain::GetToolTypeForSourceType(SourceFileType type) {
   switch (type) {
     case SOURCE_C:
       return TYPE_CC;
-    case SOURCE_CC:
+    case SOURCE_CPP:
       return TYPE_CXX;
     case SOURCE_M:
       return TYPE_OBJC;
     case SOURCE_MM:
       return TYPE_OBJCXX;
     case SOURCE_ASM:
     case SOURCE_S:
       return TYPE_ASM;
     case SOURCE_RC:
       return TYPE_RC;
@@ skipping 34 matching lines @@
       return TYPE_STAMP;
     default:
       NOTREACHED();
       return Toolchain::TYPE_NONE;
   }
 }
 
 const Tool* Toolchain::GetToolForTargetFinalOutput(const Target* target) const {
   return tools_[GetToolTypeForTargetFinalOutput(target)].get();
 }