Use the URL passed to navigator.share().

third_party/WebKit/LayoutTests/webshare/share-success.html

Index: third_party/WebKit/LayoutTests/webshare/share-success.html
diff --git a/third_party/WebKit/LayoutTests/webshare/share-success.html b/third_party/WebKit/LayoutTests/webshare/share-success.html
index 79000b50d59d01e1b93824c30c280c8dd931d28c..d5d943639351992562dc70a085d9093d5d689189 100644
--- a/third_party/WebKit/LayoutTests/webshare/share-success.html
+++ b/third_party/WebKit/LayoutTests/webshare/share-success.html
@@ -5,15 +5,50 @@
 <script src="resources/mock-share-service.js"></script>
 <script>
 
+function getAbsoluteUrl(url) {
+  return new URL(url, location).toString();
+}
+
 share_test((t, mock) => {
-  mock.pushShareResult('the title', 'the message', null);
+  let url = 'https://www.example.com/some/path?some_query#some_fragment';
+  mock.pushShareResult('the title', 'the message', getAbsoluteUrl(url), null);

[Matt Giuca, 2016/09/06 04:18:12]

Opinion: Don't use getAbsoluteURL, instead just hard-code the absolute URLs in
each case. It's longer, but it's more obvious exactly what the behaviour should
be (and therefore whether the tests are wrong).

[Matt Giuca, 2016/09/06 04:24:00]

As discussed, too hard to predict what the URL will be (it's some random file://
URL in tests). Ignore.

   return callWithKeyDown(() => navigator.share(
-        {title: 'the title', text: 'the message', url: 'the URL'}));
+        {title: 'the title', text: 'the message', url: url}));
 }, 'successful share');
 
 share_test((t, mock) => {
-  mock.pushShareResult('', '', null);
+  mock.pushShareResult('', '', '', null);
   return callWithKeyDown(() => navigator.share({}));
 }, 'successful share with empty ShareData');
 
+share_test((t, mock) => {
+  let url = '//www.example.com/some/path?some_query#some_fragment';
+  mock.pushShareResult('', '', getAbsoluteUrl(url), null);
+  return callWithKeyDown(() => navigator.share({url: url}));
+}, 'successful share with URL without a scheme');
+
+share_test((t, mock) => {
+  let url =  '/some/path?some_query#some_fragment';
+  mock.pushShareResult('', '', getAbsoluteUrl(url), null);
+  return callWithKeyDown(() => navigator.share({url: url}));
+}, 'successful share with a path-only URL');
+
+share_test((t, mock) => {
+  let url = 'foo';
+  mock.pushShareResult('', '', getAbsoluteUrl(url), null);
+  return callWithKeyDown(() => navigator.share({url: url}));
+}, 'successful share with a relative URL');
+
+share_test((t, mock) => {
+  let url = '';
+  mock.pushShareResult('', '', getAbsoluteUrl(url), null);
+  return callWithKeyDown(() => navigator.share({url: url}));
+}, 'successful share with an empty URL');
+
+share_test((t, mock) => {
+  let url = 'data:foo';
+  mock.pushShareResult('', '', getAbsoluteUrl(url), null);
+  return callWithKeyDown(() => navigator.share({url: url}));
+}, 'successful share with a data URL');
+
 </script>