chrome: Use stl utilities from the base namespace

chrome/browser/sync_file_system/local/local_file_sync_context.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 "chrome/browser/sync_file_system/local/local_file_sync_context.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
@@ skipping 50 matching lines @@
       mock_notify_changes_duration_in_sec_(-1) {
   DCHECK(base_path.IsAbsolute());
   DCHECK(ui_task_runner_->RunsTasksOnCurrentThread());
 }
 
 void LocalFileSyncContext::MaybeInitializeFileSystemContext(
     const GURL& source_url,
     FileSystemContext* file_system_context,
     const SyncStatusCallback& callback) {
   DCHECK(ui_task_runner_->RunsTasksOnCurrentThread());
-  if (ContainsKey(file_system_contexts_, file_system_context)) {
+  if (base::ContainsKey(file_system_contexts_, file_system_context)) {
     // The context has been already initialized. Just dispatch the callback
     // with SYNC_STATUS_OK.
     ui_task_runner_->PostTask(FROM_HERE, base::Bind(callback, SYNC_STATUS_OK));
     return;
   }
 
   StatusCallbackQueue& callback_queue =
       pending_initialize_callbacks_[file_system_context];
   callback_queue.push_back(callback);
   if (callback_queue.size() > 1)
@@ skipping 652 matching lines @@
     FileSystemContext* file_system_context,
     SyncStatusCode status) {
   if (!ui_task_runner_->RunsTasksOnCurrentThread()) {
     ui_task_runner_->PostTask(
         FROM_HERE,
         base::Bind(&LocalFileSyncContext::DidInitialize, this, source_url,
                    base::RetainedRef(file_system_context), status));
     return;
   }
   DCHECK(ui_task_runner_->RunsTasksOnCurrentThread());
-  DCHECK(!ContainsKey(file_system_contexts_, file_system_context));
-  DCHECK(ContainsKey(pending_initialize_callbacks_, file_system_context));
+  DCHECK(!base::ContainsKey(file_system_contexts_, file_system_context));
+  DCHECK(base::ContainsKey(pending_initialize_callbacks_, file_system_context));
 
   SyncFileSystemBackend* backend =
       SyncFileSystemBackend::GetBackend(file_system_context);
   DCHECK(backend);
   DCHECK(backend->change_tracker());
 
   file_system_contexts_.insert(file_system_context);
 
   StatusCallbackQueue& callback_queue =
       pending_initialize_callbacks_[file_system_context];
@@ skipping 292 matching lines @@
     return;
   }
 
   FileSystemURL url_for_sync = CreateSyncableFileSystemURLForSync(
       file_system_context, dest_url);
   file_system_context->operation_runner()->CopyInForeignFile(
       local_path, url_for_sync, callback);
 }
 
 }  // namespace sync_file_system