Bug 1259729 fix attaching pocket styles on startup, r=jaws

browser/extensions/pocket/bootstrap.js

@@ -383,12 +383,8 @@ var PocketOverlay = {
     CreatePocketWidget(reason);
     PocketContextMenu.init();
 
-    if (reason != APP_STARTUP) {
-      for (let win of allBrowserWindows()) {
-        this.setWindowScripts(win);
-        this.addStyles(win);
-        this.updateWindow(win);
-      }
+    for (let win of allBrowserWindows()) {
+      this.onWindowOpened(win);
     }
   },
   shutdown: function(reason) {
@@ -414,6 +410,8 @@ var PocketOverlay = {
     PocketReader.shutdown();
   },
   onWindowOpened: function(window) {
+    if (window.hasOwnProperty("pktUI"))
+      return;
     this.setWindowScripts(window);
     this.addStyles(window);
     this.updateWindow(window);