service worker: Remove unused PROVIDER_FOR_SANDBOXED_IFRAME

content/child/service_worker/service_worker_network_provider.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/child/service_worker/service_worker_network_provider.h"
 
 #include "base/atomic_sequence_num.h"
 #include "content/child/child_thread_impl.h"
 #include "content/child/service_worker/service_worker_provider_context.h"
 #include "content/common/navigation_params.h"
 #include "content/common/service_worker/service_worker_messages.h"
 #include "content/common/service_worker/service_worker_utils.h"
 #include "content/public/common/browser_side_navigation_policy.h"
 
 namespace content {
 
 namespace {
 
 const char kUserDataKey[] = "SWProviderKey";
 
 // Must be unique in the child process.
 int GetNextProviderId() {
   static base::StaticAtomicSequenceNumber sequence;
   return sequence.GetNext();  // We start at zero.
 }
 
-// When the provider is for a sandboxed iframe we use
-// kInvalidServiceWorkerProviderId as the provider type and we don't create
-// ServiceWorkerProviderContext and ServiceWorkerProviderHost.
-int GenerateProviderIdForType(const ServiceWorkerProviderType provider_type) {
-  if (provider_type == SERVICE_WORKER_PROVIDER_FOR_SANDBOXED_FRAME)
-    return kInvalidServiceWorkerProviderId;
-  return GetNextProviderId();
-}
-
 }  // namespace
 
 void ServiceWorkerNetworkProvider::AttachToDocumentState(
     base::SupportsUserData* datasource_userdata,
     std::unique_ptr<ServiceWorkerNetworkProvider> network_provider) {
   datasource_userdata->SetUserData(&kUserDataKey, network_provider.release());
 }
 
 ServiceWorkerNetworkProvider* ServiceWorkerNetworkProvider::FromDocumentState(
     base::SupportsUserData* datasource_userdata) {
@@ skipping 68 matching lines @@
       ChildThreadImpl::current()->thread_safe_sender());
   ChildThreadImpl::current()->Send(new ServiceWorkerHostMsg_ProviderCreated(
       provider_id_, route_id, provider_type));
 }
 
 ServiceWorkerNetworkProvider::ServiceWorkerNetworkProvider(
     int route_id,
     ServiceWorkerProviderType provider_type)
     : ServiceWorkerNetworkProvider(route_id,
                                    provider_type,
-                                   GenerateProviderIdForType(provider_type)) {}
+                                   GetNextProviderId()) {}
 
 ServiceWorkerNetworkProvider::ServiceWorkerNetworkProvider()
     : provider_id_(kInvalidServiceWorkerProviderId) {}
 
 ServiceWorkerNetworkProvider::~ServiceWorkerNetworkProvider() {
   if (provider_id_ == kInvalidServiceWorkerProviderId)
     return;
   if (!ChildThreadImpl::current())
     return;  // May be null in some tests.
   ChildThreadImpl::current()->Send(
       new ServiceWorkerHostMsg_ProviderDestroyed(provider_id_));
 }
 
 void ServiceWorkerNetworkProvider::SetServiceWorkerVersionId(
     int64_t version_id) {
   DCHECK_NE(kInvalidServiceWorkerProviderId, provider_id_);
   if (!ChildThreadImpl::current())
     return;  // May be null in some tests.
   ChildThreadImpl::current()->Send(
       new ServiceWorkerHostMsg_SetVersionId(provider_id_, version_id));
 }
 
 bool ServiceWorkerNetworkProvider::IsControlledByServiceWorker() const {
   return context() && context()->controller();
 }
 
 }  // namespace content