ServiceWorker: Rename 'pending version' to 'installing' or 'waiting'

content/browser/service_worker/service_worker_registration.cc

 // Copyright 2013 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_registration.h"
 
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_info.h"
 #include "content/public/browser/browser_thread.h"
 
@@ skipping 20 matching lines @@
     context_->RemoveLiveRegistration(registration_id_);
 }
 
 ServiceWorkerRegistrationInfo ServiceWorkerRegistration::GetInfo() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   return ServiceWorkerRegistrationInfo(
       script_url(),
       pattern(),
       registration_id_,
       active_version_ ? active_version_->GetInfo() : ServiceWorkerVersionInfo(),
-      pending_version_ ? pending_version_->GetInfo()
+      waiting_version_ ? waiting_version_->GetInfo()
                        : ServiceWorkerVersionInfo());
 }
 
 ServiceWorkerVersion* ServiceWorkerRegistration::GetNewestVersion() {
   if (active_version())
     return active_version();
-  return pending_version();
+  return waiting_version();
 }
 
-void ServiceWorkerRegistration::ActivatePendingVersion() {
+void ServiceWorkerRegistration::ActivateWaitingVersion() {
   active_version_->SetStatus(ServiceWorkerVersion::DEACTIVATED);
-  active_version_ = pending_version_;
+  active_version_ = waiting_version_;
   // TODO(kinuko): This should be set to ACTIVATING until activation finishes.
   active_version_->SetStatus(ServiceWorkerVersion::ACTIVE);
-  pending_version_ = NULL;
+  waiting_version_ = NULL;
 }
 
 }  // namespace content