Revert of CSP: Convert CSPSource constructor bools into a enum. (patchset #1 id:1 of https://codereview.chromium.org/568433002/)

Reason for revert:
Your patch broke quite a number of webkit tests:
http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.8%20%28retina%29/builds/19050
http://build.chromium.org/p/chromium.webkit/builders/WebKit%20Mac10.7/builds/31462

Original issue's description:
> CSP: Convert CSPSource constructor bools into a enum.
> 
> Rather than passing the wildcard disposition of CSPSource's hosts and ports
> as booleans, we should have an enum that allows us to figure out hat we
> mean at the callsite. This patch adds CSPSource::WildcardDisposition in
> order to make this clear.
> 
> Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=181821

TBR=jochen@chromium.org,mkwst@chromium.org
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/565723002

git-svn-id: svn://svn.chromium.org/blink/trunk@181833 bbb929c8-8fbe-4397-9dbb-9b2b20218538