Allow banners to trigger on sites which don't register a service worker onload.

chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java

Index: chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
diff --git a/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java b/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
index 183bd0ead07195a7f3184d5cbf0ea8e984aed5df..c5710ae8fca6368cc0d417096e971eba4d9c3594 100644
--- a/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
+++ b/chrome/android/javatests/src/org/chromium/chrome/browser/banners/AppBannerManagerTest.java
@@ -94,6 +94,9 @@ public class AppBannerManagerTest {
     private static final String WEB_APP_PATH =
             "/chrome/test/data/banners/manifest_test_page.html";
 
+    private static final String LAZY_SERVICE_WORKER_PATH =
+            "/chrome/test/data/banners/lazy_service_worker_test_page.html";
+
     private static final String WEB_APP_SHORT_TITLE_MANIFEST =
             "/chrome/test/data/banners/manifest_short_name_only.json";
 
@@ -629,6 +632,13 @@ public class AppBannerManagerTest {
                 WEB_APP_SHORT_TITLE, false);
     }
 
+    @Test
+    @SmallTest
+    @Feature({"AppBanners"})
+    public void testBannerTriggersWithLazyServiceWorker() throws Exception {
+        triggerWebAppBanner(mTestServer.getURL(LAZY_SERVICE_WORKER_PATH), WEB_APP_TITLE, false);
+    }
+
     @Test
     @SmallTest
     @Feature({"AppBanners"})