Bug 1398974: Part 3 - Add pageAction to webext talos add-on. r=mixedpuppy,jmaher

MozReview-Commit-ID: 7cQYGtNSE2O

--HG--
extra : rebase_source : 755b955fb612b1a7d6568699e55fb3ef3c6ab540

testing/talos/talos/webextensions/dummy/background.js

@@ -38,12 +38,21 @@ browser.webRequest.onErrorOccurred.addListener(
 
 
 browser.tabs.onUpdated.addListener((tabId, changed, tab) => {
+  if (changed.url) {
+    browser.pageAction.show(tabId);
+  }
+  if (changed.title) {
+    browser.pageAction.setTitle({tabId, title: `title: ${tab.title}`});
+    browser.pageAction.setIcon({tabId, path: {16: "/icon.png"}});
+  }
 });
 
 browser.tabs.onActivated.addListener(({tabId, windowId}) => {
+  browser.pageAction.show(tabId);
 });
 
 browser.tabs.onCreated.addListener(tab => {
+  browser.pageAction.show(tab.id);
 });
 
 browser.tabs.onRemoved.addListener((tabId, removeInfo) => {

testing/talos/talos/webextensions/dummy/manifest.json

@@ -14,5 +14,6 @@
     "webRequest",
     "webRequestBlocking"
   ],
-  "background": {"scripts": ["background.js"]}
+  "background": {"scripts": ["background.js"]},
+  "page_action": {}
 }