Record ChromeVox metrics

chrome/browser/resources/chromeos/chromevox/tools/check_chromevox.py

 #!/usr/bin/env python
 
 # 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.
 
 '''Uses the closure compiler to check the ChromeVox javascript files.
 
 With no arguments, checks all ChromeVox scripts.  If any arguments are
 specified, only scripts that include any of the specified files will be
@@ skipping 27 matching lines @@
   '''Converts a path relative to the top-level chromevox directory to a
   path relative to the current directory.
   '''
   return os.path.relpath(os.path.join(_CHROME_SOURCE_DIR, path))
 
 
 # Name of chrome extensions externs file.
 _CHROME_EXTENSIONS_EXTERNS = (
     ChromeRootPath('third_party/closure_compiler/externs/chrome_extensions.js'))
 
+# MetricsPrivate externs file.
+_METRICS_PRIVATE_EXTERNS = (
+    ChromeRootPath('third_party/closure_compiler/externs/metrics_private.js'))
+
+
 # Externs common to many ChromeVox scripts.
 _COMMON_EXTERNS = [
     CVoxPath('common/externs.js'),
     CVoxPath('common/chrome_extension_externs.js'),
     CVoxPath('chromevox/background/externs.js'),
     CVoxPath('chromevox/injected/externs.js'),
     CVoxPath('host/chrome/externs.js'),
-    _CHROME_EXTENSIONS_EXTERNS]
+    _CHROME_EXTENSIONS_EXTERNS,
+    _METRICS_PRIVATE_EXTERNS]
 
 # List of top-level scripts and externs that we can check.
 _TOP_LEVEL_SCRIPTS = [
     [[CVoxPath('chromevox/background/kbexplorer_loader.js')], _COMMON_EXTERNS],
     [[CVoxPath('chromevox/background/options_loader.js')], _COMMON_EXTERNS],
     [[CVoxPath('chromevox/injected/loader.js')], _COMMON_EXTERNS],
     [[CVoxPath('cvox2/background/loader.js')], _COMMON_EXTERNS],
     [[CVoxPath('cvox2/background/panel_loader.js')], _COMMON_EXTERNS],
     ]
 
@@ skipping 65 matching lines @@
   if len(args) > 0:
     changed_paths = (os.path.relpath(p) for p in args)
   success, output = CheckChromeVox(changed_paths)
   if len(output) > 0:
     print output
   return int(not success)
 
 
 if __name__ == '__main__':
   sys.exit(main())