Revert 214254 "Add initial prototype for the GN meta-buildsystem."

It broke the check_licenses step on Android (see http://build.chromium.org/p/chromium.linux/builders/Android%20Builder%20%28dbg%29/builds/39904/steps/check_licenses/logs/stdio):

@@@BUILD_STEP check_licenses@@@
> /b/build/slave/Android_Builder__dbg_/build/src/android_webview/tools/webview_licenses.py scan
Got LicenseError "missing README.chromium or licenses.py SPECIAL_CASES entry" while scanning tools/gn/secondary/base/third_party/dynamic_annotations
Got LicenseError "missing README.chromium or licenses.py SPECIAL_CASES entry" while scanning tools/gn/secondary/third_party/modp_b64
< /b/build/slave/Android_Builder__dbg_/build/src/android_webview/tools/webview_licenses.py scan
ERROR: process exited with code 2
@@@STEP_FAILURE@@@


> Add initial prototype for the GN meta-buildsystem.
> 
> This is currently not hooked into the build. To build, add a reference to the
> gn.gyp file to build/all.gyp
> 
> R=darin@chromium.org, scottmg@chromium.org
> 
> Review URL: https://codereview.chromium.org/21114002

TBR=brettw@chromium.org

Review URL: https://codereview.chromium.org/21084010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@214325 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 0 insertions, 71 deletions

diff --git a/tools/gn/ninja_helper.h b/tools/gn/ninja_helper.h
deleted file mode 100644
index 5bea29e..0000000
--- a/tools/gn/ninja_helper.h
+++ /dev/null
@@ -1,71 +0,0 @@
-// 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_HELPER_H_
-#define TOOLS_GN_NINJA_HELPER_H_
-
-#include <iosfwd>
-#include <string>
-
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/output_file.h"
-
-class BuildSettings;
-class SourceDir;
-class SourceFile;
-class Target;
-
-// NinjaHelper -----------------------------------------------------------------
-
-class NinjaHelper {
- public:
-  NinjaHelper(const BuildSettings* build_settings);
-  ~NinjaHelper();
-
-  // Ends in a slash.
-  std::string GetTopleveOutputDir() const;
-
-  // Ends in a slash.
-  std::string GetTargetOutputDir(const Target* target) const;
-
-  // Example: "base/base.ninja". The string version will not be escaped, and
-  // will always have slashes for path separators.
-  OutputFile GetNinjaFileForTarget(const Target* target) const;
-
-  // Returns the name of the root .ninja file for the given toolchain.
-  OutputFile GetNinjaFileForToolchain(const Settings* settings) const;
-
-  // Given a source file relative to the source root, returns the output
-  // filename.
-  OutputFile GetOutputFileForSource(const Target* target,
-                                   const SourceFile& source,
-                                   SourceFileType type) const;
-
-  // Returns the filename produced by the given output.
-  //
-  // Some targets make multiple files (like a .dll and an import library). This
-  // function returns the name of the file other targets should depend on and
-  // link to (so in this example, the import library).
-  OutputFile GetTargetOutputFile(const Target* target) const;
-
-  // Returns the relative directory in either slashes or the system separator
-  // from the ninja directory (e.g. "out/Debug") to the source root (e.g.
-  // "../.."). It has no terminating slash.
-  const std::string& build_to_src_no_last_slash() const {
-    return build_to_src_no_last_slash_;
-  }
-  const std::string& build_to_src_system_no_last_slash() const {
-    return build_to_src_system_no_last_slash_;
-  }
-
- private:
-  const BuildSettings* build_settings_;
-
-  std::string build_to_src_no_last_slash_;
-  std::string build_to_src_system_no_last_slash_;
-
-  DISALLOW_COPY_AND_ASSIGN(NinjaHelper);
-};
-
-#endif  // TOOLS_GN_NINJA_HELPER_H_