Service Workers: Clean up cpplint.py warnings

content/browser/service_worker/service_worker_storage.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_storage.h"
 
 #include <string>
 
 #include "base/bind_helpers.h"
 #include "base/file_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/sequenced_task_runner.h"
 #include "base/task_runner_util.h"
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_disk_cache.h"
 #include "content/browser/service_worker/service_worker_info.h"
 #include "content/browser/service_worker/service_worker_metrics.h"
 #include "content/browser/service_worker/service_worker_registration.h"
 #include "content/browser/service_worker/service_worker_utils.h"
 #include "content/browser/service_worker/service_worker_version.h"
 #include "content/common/service_worker/service_worker_types.h"
 #include "content/public/browser/browser_thread.h"
+#include "net/base/completion_callback.h"
 #include "net/base/net_errors.h"
 #include "webkit/browser/quota/quota_manager_proxy.h"
 
 namespace content {
 
 namespace {
 
 void RunSoon(const tracked_objects::Location& from_here,
              const base::Closure& closure) {
   base::MessageLoop::current()->PostTask(from_here, closure);
@@ skipping 17 matching lines @@
 const base::FilePath::CharType kServiceWorkerDirectory[] =
     FILE_PATH_LITERAL("Service Worker");
 const base::FilePath::CharType kDatabaseName[] =
     FILE_PATH_LITERAL("Database");
 const base::FilePath::CharType kDiskCacheName[] =
     FILE_PATH_LITERAL("Cache");
 
 const int kMaxMemDiskCacheSize = 10 * 1024 * 1024;
 const int kMaxDiskCacheSize = 250 * 1024 * 1024;
 
-void EmptyCompletionCallback(int) {}
-
 ServiceWorkerStatusCode DatabaseStatusToStatusCode(
     ServiceWorkerDatabase::Status status) {
   switch (status) {
     case ServiceWorkerDatabase::STATUS_OK:
       return SERVICE_WORKER_OK;
     case ServiceWorkerDatabase::STATUS_ERROR_NOT_FOUND:
       return SERVICE_WORKER_ERROR_NOT_FOUND;
     case ServiceWorkerDatabase::STATUS_ERROR_MAX:
       NOTREACHED();
     default:
@@ skipping 744 matching lines @@
 }
 
 ServiceWorkerDiskCache* ServiceWorkerStorage::disk_cache() {
   if (disk_cache_)
     return disk_cache_.get();
 
   disk_cache_.reset(new ServiceWorkerDiskCache);
 
   base::FilePath path = GetDiskCachePath();
   if (path.empty()) {
-    int rv = disk_cache_->InitWithMemBackend(
-        kMaxMemDiskCacheSize,
-        base::Bind(&EmptyCompletionCallback));
+    int rv = disk_cache_->InitWithMemBackend(kMaxMemDiskCacheSize,
+                                             net::CompletionCallback());
     DCHECK_EQ(net::OK, rv);
     return disk_cache_.get();
   }
 
   int rv = disk_cache_->InitWithDiskBackend(
       path, kMaxDiskCacheSize, false,
       disk_cache_thread_.get(),
       base::Bind(&ServiceWorkerStorage::OnDiskCacheInitialized,
                  weak_factory_.GetWeakPtr()));
   if (rv != net::ERR_IO_PENDING)
@@ skipping 337 matching lines @@
     // Give up the corruption recovery until the browser restarts.
     LOG(ERROR) << "Failed to delete the diskcache.";
     callback.Run(SERVICE_WORKER_ERROR_FAILED);
     return;
   }
   DVLOG(1) << "Deleted ServiceWorkerDiskCache successfully.";
   callback.Run(SERVICE_WORKER_OK);
 }
 
 }  // namespace content