tools/gn: Remove includes of basictypes.h.

tools/gn/ninja_writer.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_NINJA_WRITER_H_
 #define TOOLS_GN_NINJA_WRITER_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
-#include "base/basictypes.h"
+#include "base/macros.h"
 
 class Builder;
 class BuildSettings;
 class Err;
 class Settings;
 class Target;
 
 class NinjaWriter {
  public:
   // On failure will populate |err| and will return false.
@@ skipping 21 matching lines @@
                            const std::vector<const Target*>& default_targets,
                            Err* err);
 
   const BuildSettings* build_settings_;
   Builder* builder_;
 
   DISALLOW_COPY_AND_ASSIGN(NinjaWriter);
 };
 
 #endif  // TOOLS_GN_NINJA_WRITER_H_