(fix landed)Revert of Closure: remove older, original GYP compilation system

third_party/closure_compiler/compile_js.gypi

+# Copyright 2014 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.
+{
+  'type': 'none',
+  'variables': {
+    'CLOSURE_DIR': '<(DEPTH)/third_party/closure_compiler',
+    'EXTERNS_DIR': '<(CLOSURE_DIR)/externs',
+    'includes': [
+      'closure_args.gypi',
+    ],
+  },
+  'actions': [
+    {
+      # This action optionally takes these arguments:
+      # - source_files: a list of all of the source files to be compiled.
+      #                 If source_files is not defined, |target_name| will be
+      #                 used as the single source file.
+      # - out_file: a file where the compiled output is written to. The default
+      #             is gen/closure/<path to |target_name|>/|target_name|.js.
+      # - depends: scripts that the source file(s) depends on being included
+      #            already.
+      # - externs: files that describe globals used the source file(s).
+      # - script_args: additional arguments to pass to compile.py.
+      # - closure_args: additional arguments to pass to the Closure compiler.
+      # - closure_strictness_args: additional arguments dealing with the
+      #                            strictness of compilation; Non-strict
+      #                            defaults are provided that can be overriden.
+      'action_name': 'compile_js',
+      'variables': {
+        'source_files%': ['<(_target_name).js'],
+        'out_file%': '<(SHARED_INTERMEDIATE_DIR)/closure/<!(python <(CLOSURE_DIR)/build/outputs.py <(_target_name).js)',
+        'externs%': [],
+        'depends%': [],
+        # TODO(dbeam): remove when no longer used from remoting/.
+        'script_args%': [],
+        'closure_args%': '<(default_closure_args)',
+        'disabled_closure_args%': '<(default_disabled_closure_args)',
+      },
+      'inputs': [
+        '<(CLOSURE_DIR)/build/inputs.py',
+        '<(CLOSURE_DIR)/build/outputs.py',
+        '<(CLOSURE_DIR)/closure_args.gypi',
+        '<(CLOSURE_DIR)/compile.py',
+        '<(CLOSURE_DIR)/compile_js.gypi',
+        '<(CLOSURE_DIR)/compiler/compiler.jar',
+        '<(CLOSURE_DIR)/processor.py',
+        '<!@(python <(CLOSURE_DIR)/build/inputs.py <@(source_files) -d <@(depends) -e <@(externs))',
+      ],
+      'outputs': [
+        '<(out_file)',
+      ],
+      'action': [
+        'python',
+        '<(CLOSURE_DIR)/compile.py',
+        '<@(source_files)',
+        '<@(script_args)',
+        '--depends', '<@(depends)',
+        '--externs', '<@(externs)',
+        '--out_file', '<(out_file)',
+        '--closure_args', '<@(closure_args)', '<@(disabled_closure_args)',
+        # '--verbose' # for make glorious log spam of Closure compiler.
+      ],
+      'message': 'Compiling <(_target_name)',
+    }
+  ],
+}