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

content/browser/service_worker/service_worker_version_unittest.cc

 // Copyright 2014 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/service_worker/service_worker_version.h"
 
 #include <stdint.h>
 #include <tuple>
 
 #include "base/macros.h"
@@ skipping 199 matching lines @@
       : thread_bundle_(TestBrowserThreadBundle::IO_MAINLOOP) {}
 
   void SetUp() override {
     helper_ = GetMessageReceiver();
 
     helper_->context()->storage()->LazyInitialize(base::Bind(&base::DoNothing));
     base::RunLoop().RunUntilIdle();
 
     pattern_ = GURL("http://www.example.com/test/");
     registration_ = new ServiceWorkerRegistration(
-        pattern_,
-        1L,
-        helper_->context()->AsWeakPtr());
+        pattern_, false /* use_cache */, 1L, helper_->context()->AsWeakPtr());
     version_ = new ServiceWorkerVersion(
         registration_.get(),
         GURL("http://www.example.com/test/service_worker.js"),
         helper_->context()->storage()->NewVersionId(),
         helper_->context()->AsWeakPtr());
     std::vector<ServiceWorkerDatabase::ResourceRecord> records;
     records.push_back(
         ServiceWorkerDatabase::ResourceRecord(10, version_->script_url(), 100));
     version_->script_cache_map()->SetResources(records);
     version_->SetMainScriptHttpResponseInfo(
@@ skipping 1614 matching lines @@
   histogram_tester_.ExpectTotalCount(kLinkMouseDown, 1);
   histogram_tester_.ExpectTotalCount(kLinkTapDown, 0);
   EXPECT_EQ(SERVICE_WORKER_OK, status);
   StopWorker();
   // The UMA for kLinkMouseDown must be recorded when the worker stopped.
   histogram_tester_.ExpectTotalCount(kLinkMouseDown, 1);
   histogram_tester_.ExpectTotalCount(kLinkTapDown, 1);
 }
 
 }  // namespace content