Convert ARRAYSIZE_UNSAFE -> arraysize in storage/.

storage/browser/fileapi/file_system_context.cc

 // Copyright (c) 2012 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 "storage/browser/fileapi/file_system_context.h"
 
 #include "base/bind.h"
 #include "base/single_thread_task_runner.h"
 #include "base/stl_util.h"
 #include "base/task_runner_util.h"
@@ skipping 566 matching lines @@
 }
 
 void FileSystemContext::RegisterBackend(FileSystemBackend* backend) {
   const FileSystemType mount_types[] = {
     kFileSystemTypeTemporary,
     kFileSystemTypePersistent,
     kFileSystemTypeIsolated,
     kFileSystemTypeExternal,
   };
   // Register file system backends for public mount types.
-  for (size_t j = 0; j < ARRAYSIZE_UNSAFE(mount_types); ++j) {
+  for (size_t j = 0; j < arraysize(mount_types); ++j) {
     if (backend->CanHandleType(mount_types[j])) {
       const bool inserted = backend_map_.insert(
           std::make_pair(mount_types[j], backend)).second;
       DCHECK(inserted);
     }
   }
   // Register file system backends for internal types.
   for (int t = kFileSystemInternalTypeEnumStart + 1;
        t < kFileSystemInternalTypeEnumEnd; ++t) {
     FileSystemType type = static_cast<FileSystemType>(t);
@@ skipping 32 matching lines @@
   } else if (parent != child) {
     bool result = parent.AppendRelativePath(child, &path);
     DCHECK(result);
   }
 
   operation_runner()->GetMetadata(
       url, base::Bind(&DidGetMetadataForResolveURL, path, callback, info));
 }
 
 }  // namespace storage