Add support for A+ files.

Add support forcopied and renamed files.

R=dpranke@chromium.org
BUG=
TEST=


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=100138

[M-A Ruel, 2011-09-07 19:20:14]

took a while but here it comes

[Dirk Pranke, 2011-09-07 19:41:13]

LGTM.

This looks plausible, but this is more of a rubber-stamp since the details of
the patch formats are well past me.

[M-A Ruel, 2011-09-07 19:47:37]

On 2011/09/07 19:41:13, Dirk Pranke wrote:
> LGTM.
> 
> This looks plausible, but this is more of a rubber-stamp since the details of
> the patch formats are well past me.

Basically, _check_patch() verifies p.source_filename is set whenever it should
when the diff header specifies different file names.

[commit-bot: I haz the power, 2011-09-08 12:50:02]

Change committed as 100138