update obsolete code.google.com documentation links

tools/json_schema_compiler/js_externs_generator_test.py

 #!/usr/bin/env python
 # Copyright 2015 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.
 
 import idl_schema
 import json_parse
 from js_externs_generator import JsExternsGenerator
 from datetime import datetime
 import model
@@ skipping 63 matching lines @@
 # The output we expect from our fake idl file.
 expected_output = ("""// Copyright %s 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.
 
 // This file was generated by:
 //   %s.
 // NOTE: The format of types has changed. 'FooType' is now
 //   'chrome.fakeApi.FooType'.
 // Please run the closure compiler before committing changes.
-// See https://code.google.com/p/chromium/wiki/ClosureCompilation.
+// See https://chromium.googlesource.com/chromium/src/+/master/docs/closure_compilation.md
 
 /** @fileoverview Externs generated from namespace: fakeApi */
 
 /**
  * @const
  */
 chrome.fakeApi = {};
 
 /**
  * @enum {string}
@@ skipping 138 matching lines @@
 
 json_expected = ("""// Copyright %s 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.
 
 // This file was generated by:
 //   %s.
 // NOTE: The format of types has changed. 'FooType' is now
 //   'chrome.fakeJson.FooType'.
 // Please run the closure compiler before committing changes.
-// See https://code.google.com/p/chromium/wiki/ClosureCompilation.
+// See https://chromium.googlesource.com/chromium/src/+/master/docs/closure_compilation.md
 
 /** @fileoverview Externs generated from namespace: fakeJson */
 
 /**
  * @const
  */
 chrome.fakeJson = {};
 
 /**
  * @enum {string}
@@ skipping 45 matching lines @@
                               JsExternsGenerator().Generate(namespace).Render())
 
   def testJsonWithInlineObjects(self):
     namespace = self._GetNamespace(fake_json, 'fake_api.json', False)
     self.assertMultiLineEqual(json_expected,
                               JsExternsGenerator().Generate(namespace).Render())
 
 
 if __name__ == '__main__':
   unittest.main()