test: move some fixtures from spec/ to spec-main/ (#21403)

spec-main/fixtures/extensions/chrome-api/main.js

@@ -0,0 +1,39 @@
+/* global chrome */
+
+chrome.runtime.onMessage.addListener((message, sender, sendResponse) => {
+  sendResponse(message)
+})
+
+const testMap = {
+  connect () {
+    let success = false
+    try {
+      chrome.runtime.connect(chrome.runtime.id)
+      chrome.runtime.connect(chrome.runtime.id, { name: 'content-script' })
+      chrome.runtime.connect({ name: 'content-script' })
+      success = true
+    } finally {
+      console.log(JSON.stringify(success))
+    }
+  },
+  getManifest () {
+    const manifest = chrome.runtime.getManifest()
+    console.log(JSON.stringify(manifest))
+  },
+  sendMessage (message) {
+    chrome.runtime.sendMessage({ method: 'sendMessage', args: [message] }, response => {
+      console.log(JSON.stringify(response))
+    })
+  },
+  executeScript (code) {
+    chrome.runtime.sendMessage({ method: 'executeScript', args: [code] }, response => {
+      console.log(JSON.stringify(response))
+    })
+  }
+}
+
+const dispatchTest = (event) => {
+  const { method, args = [] } = JSON.parse(event.data)
+  testMap[method](...args)
+}
+window.addEventListener('message', dispatchTest, false)