Move base to DEPS

base/critical_closure_internal_ios.mm

Index: base/critical_closure_internal_ios.mm
diff --git a/base/critical_closure_internal_ios.mm b/base/critical_closure_internal_ios.mm
deleted file mode 100644
index b8fec141b2198e53c2b8e2d4826a1fba7edc0212..0000000000000000000000000000000000000000
--- a/base/critical_closure_internal_ios.mm
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright 2014 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 "base/critical_closure.h"
-
-#import <UIKit/UIKit.h>
-
-namespace base {
-namespace internal {
-
-bool IsMultiTaskingSupported() {
-  return [[UIDevice currentDevice] isMultitaskingSupported];
-}
-
-}  // namespace internal
-}  // namespace base