Move base to DEPS

base/memory/discardable_memory_allocator.h

-// Copyright 2015 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.
-
-#ifndef BASE_MEMORY_DISCARDABLE_MEMORY_ALLOCATOR_H_
-#define BASE_MEMORY_DISCARDABLE_MEMORY_ALLOCATOR_H_
-
-#include "base/base_export.h"
-#include "base/memory/scoped_ptr.h"
-
-namespace base {
-class DiscardableMemory;
-
-class BASE_EXPORT DiscardableMemoryAllocator {
- public:
-  // Returns the allocator instance.
-  static DiscardableMemoryAllocator* GetInstance();
-
-  // Sets the allocator instance. Can only be called once, e.g. on startup.
-  // Ownership of |instance| remains with the caller.
-  static void SetInstance(DiscardableMemoryAllocator* allocator);
-
-  virtual scoped_ptr<DiscardableMemory> AllocateLockedDiscardableMemory(
-      size_t size) = 0;
-
- protected:
-  virtual ~DiscardableMemoryAllocator() {}
-};
-
-}  // namespace base
-
-#endif  // BASE_MEMORY_DISCARDABLE_MEMORY_ALLOCATOR_H_