[Origin] Use the normal expectation for the 'file:' Origin.

'file:' is special, because it produces a non opaque origin, uses
port= = 0, and the conversion from/blink blink preserves port == 0.

Previous patch:
https://chromium.googlesource.com/chromium/src/+/a444094dd1d17b48a5a93629ac864a5c43671287
provided a different expectations for origins with (port == 0).

When this happens, blink replace zero by
DefaultPortForPrototocol(scheme):
- http  => 80
- https => 443
- ws    => 80
- wss   => 443
- ftp   => 21
- ftps  => 990
- _     => 0

So when the scheme is "file", zero is replaced by zero and the
transformation can be reversed.

Fixed: 1143052
Bug: 1144091
Change-Id: I8368cba6fa341a67b579ccfd9c972aace9e1e2b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2510052
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825279}

third_party/blink/renderer/platform/weborigin/security_origin_fuzzer.cc

@@ -33,7 +33,9 @@ void RoundTripFromContent(const GURL& input) {
   url::Origin origin_2 = web_security_origin_2;
 
   // The notion of unspecified port and port zero doesn't match in between
-  // url::Origin and blink::SecurityOrigin. This cause some conversion problems.
+  // url::Origin and blink::SecurityOrigin. This cause some conversion problems
+  // when the scheme is a standard one and the unspecified port can be converted
+  // to the default one.
   //                       ┌──────────────────┬───────────┐
   //                       │ port unspecified │ port zero │
   // ┌─────────────────────┼──────────────────┼───────────┤
@@ -42,7 +44,9 @@ void RoundTripFromContent(const GURL& input) {
   // │blink::SecurityOrigin│ 0                │ 0         │
   // └─────────────────────┴──────────────────┴───────────┘
   // TODO(https://crbug.com/1136678): Remove this, once fixed.
-  if (!origin_1.opaque() && origin_1.port() == 0) {
+  if (!origin_1.opaque() && origin_1.port() == 0 &&
+      url::DefaultPortForScheme(origin_1.scheme().data(),
+                                origin_1.scheme().size()) != -1) {
     CHECK_NE(origin_1, origin_2);
     CHECK_EQ(url::DefaultPortForScheme(origin_2.scheme().data(),
                                        origin_2.scheme().size()),

url/gurl_fuzzer.dict

@@ -408,8 +408,25 @@
 "file:///.//"
 "file:////"
 
-# Special scheme not mentionned above.
+# string declared from url/url_constants.cc
+"://"
+"about"
+"about:blank"
+"about:srcdoc"
+"blank"
 "blob"
+"cid"
+"content"
+"data"
+"file"
 "filesystem"
+"ftp"
+"http"
+"https"
 "javascript"
-"about"
+"mailto"
+"quic-transport"
+"srcdoc"
+"tel"
+"ws"
+"wss"