Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 58 insertions, 0 deletions

diff --git a/gfx/tests/browser/browser_windowless_troubleshoot_crash.js b/gfx/tests/browser/browser_windowless_troubleshoot_crash.js
new file mode 100644
index 0000000000..9afce41163
--- /dev/null
+++ b/gfx/tests/browser/browser_windowless_troubleshoot_crash.js
@@ -0,0 +1,58 @@
+add_task(async function test_windowlessBrowserTroubleshootCrash() {
+  let webNav = Services.appShell.createWindowlessBrowser(false);
+
+  let onLoaded = new Promise((resolve, reject) => {
+    let docShell = webNav.docShell;
+    let listener = {
+      observe(contentWindow, topic, data) {
+        let observedDocShell = contentWindow.docShell.sameTypeRootTreeItem.QueryInterface(
+          Ci.nsIDocShell
+        );
+        if (docShell === observedDocShell) {
+          Services.obs.removeObserver(
+            listener,
+            "content-document-global-created"
+          );
+          resolve();
+        }
+      },
+    };
+    Services.obs.addObserver(listener, "content-document-global-created");
+  });
+  let loadURIOptions = {
+    triggeringPrincipal: Services.scriptSecurityManager.createNullPrincipal({}),
+  };
+  webNav.loadURI("about:blank", loadURIOptions);
+
+  await onLoaded;
+
+  let winUtils = webNav.document.defaultView.windowUtils;
+  try {
+    is(
+      winUtils.layerManagerType,
+      "Basic",
+      "windowless browser's layerManagerType should be 'Basic'"
+    );
+  } catch (e) {
+    // The windowless browser may not have a layermanager at all yet, and that's ok.
+    // The troubleshooting code similarly skips over windows with no layer managers.
+  }
+  ok(true, "not crashed");
+
+  var Troubleshoot = ChromeUtils.import(
+    "resource://gre/modules/Troubleshoot.jsm",
+    {}
+  ).Troubleshoot;
+  var data = await new Promise((resolve, reject) => {
+    Troubleshoot.snapshot(data => {
+      resolve(data);
+    });
+  });
+
+  ok(
+    data.graphics.windowLayerManagerType !== "None",
+    "windowless browser window should not set windowLayerManagerType to 'None'"
+  );
+
+  webNav.close();
+});