Add tests for webRequest events and frame unload

chrome/test/data/extensions/api_test/webrequest/test_unload3.js

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+runTests([
+  // Open a page that loads a slow same-origin frame in it and remove the frame.
+  function loadTabWithSlowFrameAndRemoveFrame() {
+    const hostname = 'slow-child-frame-same-origin-remove-frame';
+    const url = getSlowURL(hostname);
+    const mainUrl = getPageWithFrame(url, hostname);
+
+    expect([
+      { label: 'onBeforeRequest',
+        event: 'onBeforeRequest',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+          frameUrl: url,
+        }
+      },
+      { label: 'onBeforeSendHeaders',
+        event: 'onBeforeSendHeaders',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+        },
+      },
+      { label: 'onSendHeaders',
+        event: 'onSendHeaders',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+        },
+      },
+      { label: 'onErrorOccurred',
+        event: 'onErrorOccurred',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+          fromCache: false,
+          error: 'net::ERR_ABORTED',
+        },
+      }],
+      [['onBeforeRequest', 'onBeforeSendHeaders', 'onSendHeaders',
+        'onErrorOccurred']],
+      {
+        urls: ['<all_urls>'],
+        types: ['sub_frame'],
+      });
+
+    waitUntilSendHeaders('sub_frame', url, function() {
+      // Cancels load and triggers onErrorOccurred.
+      chrome.tabs.executeScript(tabId, {
+        code: 'document.querySelector("iframe").remove();',
+      });
+    });
+    chrome.tabs.update(tabId, {url: mainUrl});
+  },
+
+  // Now reload the page (so that the frame appears again) and remove the tab.
+  // The expectations are identical to the previous test.
+  function openTabWithSlowFrameAndRemoveTab() {
+    const hostname = 'slow-child-frame-same-origin-remove-tab';
+    const url = getSlowURL(hostname);
+    const mainUrl = getPageWithFrame(url, hostname);
+
+    expect([
+      { label: 'onBeforeRequest',
+        event: 'onBeforeRequest',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+          frameUrl: url,
+        }
+      },
+      { label: 'onBeforeSendHeaders',
+        event: 'onBeforeSendHeaders',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+        },
+      },
+      { label: 'onSendHeaders',
+        event: 'onSendHeaders',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+        },
+      },
+      { label: 'onErrorOccurred',
+        event: 'onErrorOccurred',
+        details: {
+          type: 'sub_frame',
+          url,
+          frameId: 1,
+          parentFrameId: 0,
+          fromCache: false,
+          error: 'net::ERR_ABORTED',
+        },
+      }],
+      [['onBeforeRequest', 'onBeforeSendHeaders', 'onSendHeaders',
+        'onErrorOccurred']],
+      {
+        urls: ['<all_urls>'],
+        types: ['sub_frame'],
+      });
+
+    var callbackDone = chrome.test.callbackAdded();
+
+    waitUntilSendHeaders('sub_frame', url, function() {
+      // Cancels load and triggers onErrorOccurred.
+      chrome.tabs.remove(tabId, callbackDone);
+    });
+    chrome.tabs.update(tabId, {url: mainUrl});
+  },
+]);