storage: Use stl utilities from the base namespace

storage/browser/fileapi/file_system_usage_cache.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_usage_cache.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <utility>
@@ skipping 143 matching lines @@
 bool FileSystemUsageCache::Delete(const base::FilePath& usage_file_path) {
   TRACE_EVENT0("FileSystem", "UsageCache::Delete");
   DCHECK(CalledOnValidThread());
   CloseCacheFiles();
   return base::DeleteFile(usage_file_path, false);
 }
 
 void FileSystemUsageCache::CloseCacheFiles() {
   TRACE_EVENT0("FileSystem", "UsageCache::CloseCacheFiles");
   DCHECK(CalledOnValidThread());
-  STLDeleteValues(&cache_files_);
+  base::STLDeleteValues(&cache_files_);
   timer_.reset();
 }
 
 bool FileSystemUsageCache::Read(const base::FilePath& usage_file_path,
                                 bool* is_valid,
                                 uint32_t* dirty_out,
                                 int64_t* usage_out) {
   TRACE_EVENT0("FileSystem", "UsageCache::Read");
   DCHECK(CalledOnValidThread());
   DCHECK(is_valid);
@@ skipping 118 matching lines @@
                            weak_factory_.GetWeakPtr()));
 }
 
 bool FileSystemUsageCache::CalledOnValidThread() {
   return !task_runner_.get() || task_runner_->RunsTasksOnCurrentThread();
 }
 
 bool FileSystemUsageCache::HasCacheFileHandle(const base::FilePath& file_path) {
   DCHECK(CalledOnValidThread());
   DCHECK_LE(cache_files_.size(), kMaxHandleCacheSize);
-  return ContainsKey(cache_files_, file_path);
+  return base::ContainsKey(cache_files_, file_path);
 }
 
 }  // namespace storage