[Android WebView] Relax license parsing for BSD

[Android WebView] Relax license parsing for BSD

This adds "2-clause BSD" and "3-clause BSD" to whitelisted licenses.
This is only a wording issue, since "BSD 2-clause" and "BSD 3-clause"
are already whitelisted.

This makes third_party/mach_override pass webview license check, even
though that particular library is not used by webview.

BUG=315381
NOTRY=true
TBR=joth

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=233530

[boliu, 2013-11-06 20:45:37]

tbr-ing

[commit-bot: I haz the power, 2013-11-06 21:01:51]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/boliu@chromium.org/62663002/1

[commit-bot: I haz the power, 2013-11-07 07:40:20]

Change committed as 233530