The commit adding the "trap" referred to in the article appears to be:

http://src.chromium.org/viewvc/chrome?view=rev&revision=...

The change causes a specific exception when a style of attack known as a JIT spraying attack is detected. The exception generates a minidump which is uploaded to Google's crash servers.

Further info:

* http://code.google.com/p/chromium/issues/detail?id=113891

* http://en.wikipedia.org/wiki/JIT_spraying