[Chromoting] Update jscompile target to use JS files from gypi.

remoting/tools/jscompile.py

Index: remoting/tools/jscompile.py
diff --git a/remoting/tools/jscompile.py b/remoting/tools/jscompile.py
new file mode 100755
index 0000000000000000000000000000000000000000..0f06964696e185b1dbdd63af960091233f4b40b0
--- /dev/null
+++ b/remoting/tools/jscompile.py
@@ -0,0 +1,49 @@
+#!/usr/bin/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.
+
+import argparse
+import subprocess
+import sys
+import os
+
+DESCRIPTION = '''Run the given JavaScript files through jscompile.'''
+FILES_HELP = '''A list of Javascript files. The Javascript files should include
+files that contain definitions of types or functions that are known to Chrome
+but not to jscompile.'''
+STAMP_HELP = 'Timestamp file to update on success.'
+
+def checkJavascript(js_files):
+  args = ['jscompile'] + js_files
+  result = subprocess.call(args)
+  return result == 0
+
+
+def main():
+  parser = argparse.ArgumentParser(description = DESCRIPTION)
+  parser.add_argument('files', nargs = '+', help = FILES_HELP)
+  parser.add_argument('--success-stamp', dest = 'success_stamp',
+                      help = STAMP_HELP)
+  options = parser.parse_args()
+
+  js = []
+  for file in options.files:
+    name, extension = os.path.splitext(file)
+    if extension == '.js':
+      js.append(file)
+    else:
+      print >> sys.stderr, 'Unknown extension (' + extension + ') for ' + file
+      return 1
+
+  if not checkJavascript(js):
+    return 1
+
+  if options.success_stamp:
+    with open(options.success_stamp, 'w'):
+      os.utime(options.success_stamp, None)
+
+  return 0
+
+if __name__ == '__main__':
+  sys.exit(main())