Convert ARRAYSIZE_UNSAFE -> arraysize in storage/.

R=michaeln@chromium.org
BUG=423134

Review URL: https://codereview.chromium.org/657303002

Cr-Commit-Position: refs/heads/master@{#299885}

storage/browser/fileapi/file_system_context.cc

@@ -584,7 +584,7 @@ void FileSystemContext::RegisterBackend(FileSystemBackend* backend) {
     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;

storage/browser/quota/quota_database.cc

@@ -476,8 +476,8 @@ bool QuotaDatabase::LazyOpen(bool create_if_needed) {
 }
 
 bool QuotaDatabase::EnsureDatabaseVersion() {
-  static const size_t kTableCount = ARRAYSIZE_UNSAFE(kTables);
-  static const size_t kIndexCount = ARRAYSIZE_UNSAFE(kIndexes);
+  static const size_t kTableCount = arraysize(kTables);
+  static const size_t kIndexCount = arraysize(kIndexes);
   if (!sql::MetaTable::DoesTableExist(db_.get()))
     return CreateSchema(db_.get(), meta_table_.get(),
                         kCurrentVersion, kCompatibleVersion,

storage/common/fileapi/file_system_util.cc

@@ -171,7 +171,7 @@ bool ParseFileSystemSchemeURL(const GURL& url,
   // A path of the inner_url contains only mount type part (e.g. "/temporary").
   DCHECK(url.inner_url());
   std::string inner_path = url.inner_url()->path();
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kValidTypes); ++i) {
+  for (size_t i = 0; i < arraysize(kValidTypes); ++i) {
     if (inner_path == kValidTypes[i].dir) {
       file_system_type = kValidTypes[i].type;
       break;