service worker: Add CHECKs for investigating null http info bug.

content/browser/service_worker/service_worker_url_request_job_unittest.cc

Index: content/browser/service_worker/service_worker_url_request_job_unittest.cc
diff --git a/content/browser/service_worker/service_worker_url_request_job_unittest.cc b/content/browser/service_worker/service_worker_url_request_job_unittest.cc
index 30021b9d4b4246e941e238d21f36f07ebe74c59d..6e518aea19186ce1c2dc494f809bf2945a466517 100644
--- a/content/browser/service_worker/service_worker_url_request_job_unittest.cc
+++ b/content/browser/service_worker/service_worker_url_request_job_unittest.cc
@@ -911,34 +911,6 @@ TEST_P(ServiceWorkerURLRequestJobTestP, FailFetchDispatch) {
   EXPECT_FALSE(info->service_worker_ready_time().is_null());
 }
 
-// TODO(horo): Remove this test when crbug.com/485900 is fixed.
-TEST_P(ServiceWorkerURLRequestJobTestP, MainScriptHTTPResponseInfoNotSet) {
-  // Shouldn't crash if MainScriptHttpResponseInfo is not set.
-  SetUpWithHelper(new EmbeddedWorkerTestHelper(base::FilePath()), false);
-  version_->SetStatus(ServiceWorkerVersion::ACTIVATED);
-  request_ = url_request_context_.CreateRequest(
-      GURL("https://example.com/foo.html"), net::DEFAULT_PRIORITY,
-      &url_request_delegate_);
-  request_->set_method("GET");
-  request_->Start();
-  base::RunLoop().RunUntilIdle();
-  EXPECT_TRUE(request_->status().is_success());
-  EXPECT_EQ(200, request_->GetResponseCode());
-  EXPECT_EQ("", url_request_delegate_.response_data());
-
-  EXPECT_EQ(0, times_prepare_to_restart_invoked_);
-  ServiceWorkerResponseInfo* info =
-      ServiceWorkerResponseInfo::ForRequest(request_.get());
-  ASSERT_TRUE(info);
-  EXPECT_TRUE(info->was_fetched_via_service_worker());
-  EXPECT_FALSE(info->was_fallback_required());
-  EXPECT_EQ(0u, info->url_list_via_service_worker().size());
-  EXPECT_EQ(blink::WebServiceWorkerResponseTypeDefault,
-            info->response_type_via_service_worker());
-  EXPECT_FALSE(info->service_worker_start_time().is_null());
-  EXPECT_FALSE(info->service_worker_ready_time().is_null());
-}
-
 TEST_P(ServiceWorkerURLRequestJobTestP, FailToActivate_MainResource) {
   RunFailToActivateTest(RESOURCE_TYPE_MAIN_FRAME);