[DevTools] Add basic tests for Network.*ExtraInfo events

Bug: 849483, 868407
Change-Id: I6ab375a857d248b68122222367ce908cb349b42c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1659528
Commit-Queue: Joey Arhar <jarhar@chromium.org>
Reviewed-by: Andrey Kosyakov <caseq@chromium.org>
Cr-Commit-Position: refs/heads/master@{#680184}

third_party/blink/web_tests/http/tests/inspector-protocol/network/extra-info-raw-headers-navigation-expected.txt

+Verifies that navigation requests have their raw headers shown in Network.*ExtraInfo events by checking cookie headers.
+
+Response set-cookie header: name=value; Secure; SameSite=None; HttpOnly
+
+Request cookie header: name=value
+

third_party/blink/web_tests/http/tests/inspector-protocol/network/extra-info-raw-headers-navigation.js

+(async function(testRunner) {
+  const {page, session, dp} = await testRunner.startBlank(
+      `Verifies that navigation requests have their raw headers shown in Network.*ExtraInfo events by checking cookie headers.\n`);
+
+  await dp.Network.enable();
+
+  const setCookieUrl = 'https://cookie.test:8443/inspector-protocol/network/resources/set-cookie-samesitenone.php';
+  const helloWorldUrl = 'https://cookie.test:8443/inspector-protocol/network/resources/hello-world.html';
+  const otherDomainUrl = 'https://thirdparty.test:8443/inspector-protocol/network/resources/hello-world.html';
+
+  const helper = (await testRunner.loadScript('resources/extra-info-helper.js'))(dp, session);
+
+  // set the cookie with a navigation request
+  const {responseExtraInfo} = await helper.navigateWithExtraInfo(setCookieUrl);
+  testRunner.log(`Response set-cookie header: ${responseExtraInfo.params.headers['set-cookie']}\n`);
+
+  // navigate to a different domain
+  await helper.navigateWithExtraInfo(otherDomainUrl);
+
+  // make a cross origin navigation request to the domain with the cookie
+  const {requestExtraInfo} = await helper.navigateWithExtraInfo(helloWorldUrl);
+  testRunner.log(`Request cookie header: ${requestExtraInfo.params.headers['Cookie']}`);
+
+  testRunner.completeTest();
+})

third_party/blink/web_tests/http/tests/inspector-protocol/network/extra-info-raw-headers-subresource-expected.txt

+Verifies that cross origin requests have their raw headers shown in Network.*ExtraInfo events by checking cookie headers.
+
+Response set-cookie header: name=value; Secure; SameSite=None; HttpOnly
+
+Request cookie header: name=value
+

third_party/blink/web_tests/http/tests/inspector-protocol/network/extra-info-raw-headers-subresource.js

+(async function(testRunner) {
+  const {page, session, dp} = await testRunner.startBlank(
+      `Verifies that cross origin requests have their raw headers shown in Network.*ExtraInfo events by checking cookie headers.\n`);
+
+  await dp.Network.enable();
+
+  const setCookieUrl = 'https://cookie.test:8443/inspector-protocol/network/resources/set-cookie-samesitenone.php';
+  const firstPartyUrl = 'https://cookie.test:8443/inspector-protocol/network/resources/hello-world.html';
+  const thirdPartyUrl = 'https://thirdparty.test:8443/inspector-protocol/network/resources/hello-world.html';
+
+  const helper = (await testRunner.loadScript('resources/extra-info-helper.js'))(dp, session);
+
+  // navigate to a third party domain
+  await helper.navigateWithExtraInfo(thirdPartyUrl);
+
+  // set the cookie with a subresource request
+  const {responseExtraInfo} = await helper.fetchWithExtraInfo(setCookieUrl);
+  testRunner.log(`Response set-cookie header: ${responseExtraInfo.params.headers['set-cookie']}\n`);
+
+  // make a cross origin subresource request to the domain with the cookie
+  const {requestExtraInfo} = await helper.fetchWithExtraInfo(firstPartyUrl);
+  testRunner.log(`Request cookie header: ${requestExtraInfo.params.headers['Cookie']}`);
+
+  testRunner.completeTest();
+})

third_party/blink/web_tests/http/tests/inspector-protocol/network/resources/extra-info-helper.js

+(function() {
+  class FetchExtraInfoHelper {
+    constructor(dp, session) {
+      this._dp = dp;
+      this._session = session;
+    }
+
+    async navigateWithExtraInfo(url) {
+      const requestExtraInfoPromise = this._dp.Network.onceRequestWillBeSentExtraInfo();
+      const responseExtraInfoPromise = this._dp.Network.onceResponseReceivedExtraInfo();
+      await this._session.navigate(url);
+      const requestExtraInfo = await requestExtraInfoPromise;
+      const responseExtraInfo = await responseExtraInfoPromise;
+      return {requestExtraInfo, responseExtraInfo};
+    }
+
+    async fetchWithExtraInfo(url) {
+      const requestExtraInfoPromise = this._dp.Network.onceRequestWillBeSentExtraInfo();
+      const responseExtraInfoPromise = this._dp.Network.onceResponseReceivedExtraInfo();
+      await this._session.evaluate(`fetch('${url}', {method: 'POST', credentials: 'include'})`);
+      const requestExtraInfo = await requestExtraInfoPromise;
+      const responseExtraInfo = await responseExtraInfoPromise;
+      return {requestExtraInfo, responseExtraInfo};
+    }
+  };
+
+  return (dp, session) => {
+    return new FetchExtraInfoHelper(dp, session);
+  };
+})()

third_party/blink/web_tests/http/tests/inspector-protocol/network/resources/hello-world.html

+<body>
+  <h1>hello world</h1>
+</body>

third_party/blink/web_tests/http/tests/inspector-protocol/network/resources/set-cookie-samesitenone.php

+<?php
+header('set-cookie: name=value; Secure; SameSite=None; HttpOnly')
+?>