Bug 1271075: Sites on the new tab page opened with middle click in e1…

…0s should have a 'referrerURI'. r=ursulasarracini

browser/base/content/browser.js

@@ -2967,7 +2967,7 @@ var BrowserOnClick = {
         anchorTarget.classList.contains("newtab-link")) {
       event.preventDefault();
       let where = whereToOpenLink(event, false, false);
-      openLinkIn(anchorTarget.href, where, { charset: ownerDoc.characterSet });
+      openLinkIn(anchorTarget.href, where, { charset: ownerDoc.characterSet, referrerURI: ownerDoc.documentURIObject });
     }
   },
 

browser/base/content/test/newtab/browser.ini

@@ -22,6 +22,7 @@ support-files =
 [browser_newtab_bug1145428.js]
 [browser_newtab_bug1178586.js]
 [browser_newtab_bug1194895.js]
+[browser_newtab_bug1271075.js]
 [browser_newtab_disable.js]
 [browser_newtab_drag_drop.js]
 [browser_newtab_drag_drop_ext.js]

browser/base/content/test/newtab/browser_newtab_bug1271075.js

@@ -0,0 +1,32 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+add_task(function* () {
+  is(gBrowser.tabs.length, 1, "one tab is open initially");
+
+  // Add a few tabs.
+  let tabs = [];
+  function addTab(aURL, aReferrer) {
+    let tab = gBrowser.addTab(aURL, {referrerURI: aReferrer});
+    tabs.push(tab);
+    return BrowserTestUtils.browserLoaded(tab.linkedBrowser);
+  }
+
+  yield addTab("http://mochi.test:8888/#0");
+  yield addTab("http://mochi.test:8888/#1");
+  yield addTab("http://mochi.test:8888/#2");
+  yield addTab("http://mochi.test:8888/#3");
+
+  // Create a new tab page with a "www.example.com" tile and move it to the 2nd tab position.
+  yield setLinks("-1");
+  yield* addNewTabPageTab();
+  gBrowser.moveTabTo(gBrowser.selectedTab, 1);
+
+  // Send a middle-click and confirm that the clicked site opens immediately next to the new tab page.
+  yield BrowserTestUtils.synthesizeMouseAtCenter(".newtab-cell",
+                                                 {button: 1}, gBrowser.selectedBrowser);
+
+  yield BrowserTestUtils.browserLoaded(gBrowser.getBrowserAtIndex(2));
+  is(gBrowser.getBrowserAtIndex(2).currentURI.spec, "http://example.com/",
+     "Middle click opens site in a new tab immediately to the right.");
+});