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

third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.cpp

Index: third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.cpp
diff --git a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.cpp b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.cpp
index e8449e87716a5314e28d9c30e18ba9642260bc96..8771be830f70f2b94f37aa7e2f854562339e5405 100644
--- a/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.cpp
+++ b/third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerContainer.cpp
@@ -155,6 +155,7 @@ void ServiceWorkerContainer::registerServiceWorkerImpl(
     ExecutionContext* executionContext,
     const KURL& rawScriptURL,
     const KURL& scope,
+    bool useCache,
     std::unique_ptr<RegistrationCallbacks> callbacks) {
   if (!m_provider) {
     callbacks->onError(
@@ -259,7 +260,7 @@ void ServiceWorkerContainer::registerServiceWorkerImpl(
     }
   }
 
-  m_provider->registerServiceWorker(patternURL, scriptURL,
+  m_provider->registerServiceWorker(patternURL, scriptURL, useCache,
                                     std::move(callbacks));
 }
 
@@ -292,8 +293,10 @@ ScriptPromise ServiceWorkerContainer::registerServiceWorker(
   else
     patternURL = executionContext->completeURL(options.scope());
 
+  bool useCache = options.useCache();
+
   registerServiceWorkerImpl(
-      executionContext, scriptURL, patternURL,
+      executionContext, scriptURL, patternURL, useCache,
       WTF::makeUnique<CallbackPromiseAdapter<ServiceWorkerRegistration,
                                              ServiceWorkerErrorForUpdate>>(
           resolver));