Implement updateViaCache flag and no-cache by default for main service worker scripts

content/browser/browsing_data/clear_site_data_throttle_browsertest.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/browsing_data/clear_site_data_throttle.h"
 
 #include <memory>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 237 matching lines @@
 
     GURL scope_url = https_server()->GetURL(origin, "/");
     GURL js_url = https_server()->GetURL(origin, "/?file=worker.js");
 
     // Register the worker.
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::BindOnce(
             &ServiceWorkerContextWrapper::RegisterServiceWorker,
             base::Unretained(service_worker_context), scope_url, js_url,
+            blink::WebServiceWorkerUpdateViaCache::kImports,
             base::Bind(
                 &ClearSiteDataThrottleBrowserTest::AddServiceWorkerCallback,
                 base::Unretained(this))));
 
     // Wait for its activation.
     base::RunLoop run_loop;
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&ServiceWorkerActivationObserver::SignalActivation,
                    base::Unretained(service_worker_context),
@@ skipping 613 matching lines @@
 // Tests that closing the tab right after executing Clear-Site-Data does
 // not crash.
 IN_PROC_BROWSER_TEST_F(ClearSiteDataThrottleBrowserTest, ClosedTab) {
   GURL url = https_server()->GetURL("example.com", "/");
   AddQuery(&url, "header", kClearCookiesHeader);
   shell()->LoadURL(url);
   shell()->Close();
 }
 
 }  // namespace content