fixup! TB 21952: Implement Onion-Location

No more inline event handlers

browser/base/content/browser-init.js

@@ -281,6 +281,9 @@ var gBrowserInit = {
     // Init the OnionAuthPrompt
     OnionAuthPrompt.init();
 
+    // Init the Onion Location pill
+    OnionLocationParent.init(document);
+
     gTorCircuitPanel.init();
 
     // Certain kinds of automigration rely on this notification to complete

browser/components/onionservices/OnionLocationParent.sys.mjs

@@ -34,12 +34,19 @@ export class OnionLocationParent extends JSWindowActorParent {
   // Listeners are added in BrowserGlue.jsm
   receiveMessage(aMsg) {
     switch (aMsg.name) {
-      case "OnionLocation:Set":
+      case "OnionLocation:Set": {
         let browser = this.browsingContext.embedderElement;
         OnionLocationParent.setOnionLocation(browser);
         break;
       }
     }
+  }
+
+  static init(document) {
+    document
+      .getElementById(ONIONLOCATION_BOX_ID)
+      .addEventListener("click", event => this.buttonClick(event));
+  }
 
   static buttonClick(event) {
     if (event.button !== 0) {

browser/components/onionservices/content/onionlocation-urlbar.inc.xhtml

@@ -3,8 +3,7 @@
 <hbox id="onion-location-box"
       class="tor-button tor-urlbar-button"
       role="button"
-      hidden="true"
-      onclick="OnionLocationParent.buttonClick(event);">
+      hidden="true">
   <image id="onion-location-button" role="presentation"/>
   <label id="onion-label"/>
 </hbox>