1 files changed, 45 insertions, 0 deletions
diff --git a/system/docshell/test/navigation/browser_test-content-chromeflags.js b/system/docshell/test/navigation/browser_test-content-chromeflags.js
new file mode 100644
index 000000000..64559897c
--- /dev/null
+++ b/system/docshell/test/navigation/browser_test-content-chromeflags.js
@@ -0,0 +1,45 @@
+const TEST_PAGE = `data:text/html,<html><body><a href="about:blank" target="_blank">Test</a></body></html>`;
+const CHROME_ALL = Ci.nsIWebBrowserChrome.CHROME_ALL;
+const CHROME_REMOTE_WINDOW = Ci.nsIWebBrowserChrome.CHROME_REMOTE_WINDOW;
+
+/**
+ * Tests that when we open new browser windows from content they
+ * get the full browser chrome.
+ */
+add_task(function* () {
+  // Make sure that the window.open call will open a new
+  // window instead of a new tab.
+  yield new Promise(resolve => {
+    SpecialPowers.pushPrefEnv({
+      "set": [
+        ["browser.link.open_newwindow", 2],
+      ]
+    }, resolve);
+  });
+
+  yield BrowserTestUtils.withNewTab({
+    gBrowser,
+    url: TEST_PAGE
+  }, function*(browser) {
+    let openedPromise = BrowserTestUtils.waitForNewWindow();
+    BrowserTestUtils.synthesizeMouse("a", 0, 0, {}, browser);
+    let win = yield openedPromise;
+
+    let chromeFlags = win.QueryInterface(Ci.nsIInterfaceRequestor)
+                         .getInterface(Ci.nsIWebNavigation)
+                         .QueryInterface(Ci.nsIDocShellTreeItem)
+                         .treeOwner
+                         .QueryInterface(Ci.nsIInterfaceRequestor)
+                         .getInterface(Ci.nsIXULWindow)
+                         .chromeFlags;
+
+    // In the multi-process case, the new window will have the
+    // CHROME_REMOTE_WINDOW flag set.
+    const EXPECTED = gMultiProcessBrowser ? CHROME_ALL | CHROME_REMOTE_WINDOW
+                                          : CHROME_ALL;
+
+    is(chromeFlags, EXPECTED, "Window should have opened with all chrome");
+
+    BrowserTestUtils.closeWindow(win);
+  });
+});