image_extractor: ValidateZip should also expect zlib.error for a bad zip file.

When we validate a zip file to see if it is corrupt, we were looking for
zipfile.BadZipfile exceptions. It turns out we also need to look for
zlib.error exceptions.

BUG=chromium:361764
TEST=pylint + not breaking existing tests (didn't add new one though)

Change-Id: I832ff2ace6ff87aadc2f449d5423911c9f41c57e
Reviewed-on: https://chromium-review.googlesource.com/193889
Reviewed-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Don Garrett <dgarrett@chromium.org>
Tested-by: Don Garrett <dgarrett@chromium.org>
1 file changed