Add cross origin to Blink-driven preconnect

chrome/browser/net/preconnect.h

Index: chrome/browser/net/preconnect.h
diff --git a/chrome/browser/net/preconnect.h b/chrome/browser/net/preconnect.h
index 6e8442c92c57f5ff9ab35995878190e08b1b69e5..72718c165bd6609c6d0a7909ef2963308ad7bd69 100644
--- a/chrome/browser/net/preconnect.h
+++ b/chrome/browser/net/preconnect.h
@@ -34,7 +34,8 @@ void PreconnectOnIOThread(const GURL& url,
                           const GURL& first_party_for_cookies,
                           UrlInfo::ResolutionMotivation motivation,
                           int count,
-                          net::URLRequestContextGetter* getter);
+                          net::URLRequestContextGetter* getter,
+                          bool allow_credentials);

[Ryan Sleevi, 2015/07/10 09:46:45]

Wondering out loud (for Matt, mostly) - do we want this to be an enum?

like

chrome_browser_net {

enum CredentialsFlag {
  CREDENTIALS_FLAG_SET,
  CREDENTIALS_FLAG_UNSET,
};


Bikeshed on naming (INCLUDE_CREDENTIALS, etc) notwithstanding, my goal was to
see if it makes it clearer how this maps back to Fetch spec terminology (namely,
"credentials flag" as discussed in
https://fetch.spec.whatwg.org/#http-network-or-cache-fetch ) so that it can be
clear how this is used.

 
 }  // namespace chrome_browser_net