Open-source histograms.xml, starting with Autofill histograms.

tools/metrics/histograms/validate_format.py

Index: tools/metrics/histograms/validate_format.py
diff --git a/tools/metrics/histograms/validate_format.py b/tools/metrics/histograms/validate_format.py
new file mode 100644
index 0000000000000000000000000000000000000000..f337e6ed2cebc86e59c651aebd6522cb5b5af6ab
--- /dev/null
+++ b/tools/metrics/histograms/validate_format.py
@@ -0,0 +1,17 @@
+# Copyright 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.
+
+"""Verifies that the histograms XML file is well-formatted."""
+
+import extract_histograms
+
+
+def main():
+  # This will raise an exception if the file is not well-formatted.
+  histograms = extract_histograms.ExtractHistograms('histograms.xml')
+
+
+if __name__ == '__main__':
+  main()

[Ilya Sherman, 2013/03/29 08:24:15]

And this file is new, because "import extract_histograms" didn't work directly
from the PRESUBMIT script

+