Compile print_preview, part 3: reduce down to 185 errors

chrome/browser/resources/print_preview/data/destination_store.js

Index: chrome/browser/resources/print_preview/data/destination_store.js
diff --git a/chrome/browser/resources/print_preview/data/destination_store.js b/chrome/browser/resources/print_preview/data/destination_store.js
index 627dd4add1f91ba3cf8ae2267b75d78c12cfe29f..6d957ced80e9e886c8619548e459f0d0f127de7c 100644
--- a/chrome/browser/resources/print_preview/data/destination_store.js
+++ b/chrome/browser/resources/print_preview/data/destination_store.js
@@ -294,7 +294,7 @@ cr.define('print_preview', function() {
         var key = this.getDestinationKey_(
             this.appState_.selectedDestinationOrigin,
             this.appState_.selectedDestinationId,
-            this.appState_.selectedDestinationAccount);
+            assert(this.appState_.selectedDestinationAccount));
         var candidate = this.destinationMap_[key];
         if (candidate != null) {
           this.selectDestination(candidate);