Revert "Revert "use onInstalled.addListener, chrome.*""

This reverts commit e322e67.

Author: wesinator

src/background.js

@@ -3,44 +3,44 @@ Called when the item has been created, or when creation failed due to an error.
 We'll just log success/failure here.
 */
 function onCreated() {
-  if (browser.runtime.lastError) {
-    console.log(`Error: ${browser.runtime.lastError}`);
+  if (chrome.runtime.lastError) {
+    console.log(`Error: ${chrome.runtime.lastError}`);
   } else {
     //console.log("Item created successfully");
   }
 }
 
+chrome.runtime.onInstalled.addListener(() => {
+    chrome.contextMenus.create({
+      id: "MD5",
+      title: chrome.i18n.getMessage("MD5"),
+      contexts: ["all"]
+    }, onCreated);
 
-chrome.contextMenus.create({
-  id: "MD5",
-  title: browser.i18n.getMessage("MD5"),
-  contexts: ["all"]
-}, onCreated);
+    chrome.contextMenus.create({
+      id: "separator0",
+      type: "separator",
+      contexts: ["all"]
+    }, onCreated);
 
-chrome.contextMenus.create({
-  id: "separator0",
-  type: "separator",
-  contexts: ["all"]
-}, onCreated);
+    chrome.contextMenus.create({
+      id: "SHA1",
+      title: chrome.i18n.getMessage("SHA1"),
+      contexts: ["all"]
+    }, onCreated);
 
-chrome.contextMenus.create({
-  id: "SHA1",
-  title: browser.i18n.getMessage("SHA1"),
-  contexts: ["all"]
-}, onCreated);
-
-chrome.contextMenus.create({
-  id: "SHA256",
-  title: browser.i18n.getMessage("SHA256"),
-  contexts: ["all"]
-}, onCreated);
-
-chrome.contextMenus.create({
-  id: "SHA512",
-  title: browser.i18n.getMessage("SHA512"),
-  contexts: ["all"]
-}, onCreated);
+    chrome.contextMenus.create({
+      id: "SHA256",
+      title: chrome.i18n.getMessage("SHA256"),
+      contexts: ["all"]
+    }, onCreated);
 
+    chrome.contextMenus.create({
+      id: "SHA512",
+      title: chrome.i18n.getMessage("SHA512"),
+      contexts: ["all"]
+    }, onCreated);
+});
 
 /*
 The click event listener, where we perform the appropriate action given the