Remove //net (except for Android test stuff) and sdch

net/disk_cache/blockfile/storage_block.h

-// 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.
-
-// See net/disk_cache/disk_cache.h for the public interface.
-
-#ifndef NET_DISK_CACHE_BLOCKFILE_STORAGE_BLOCK_H_
-#define NET_DISK_CACHE_BLOCKFILE_STORAGE_BLOCK_H_
-
-#include "net/disk_cache/blockfile/addr.h"
-#include "net/disk_cache/blockfile/mapped_file.h"
-
-namespace disk_cache {
-
-// This class encapsulates common behavior of a single "block" of data that is
-// stored on a block-file. It implements the FileBlock interface, so it can be
-// serialized directly to the backing file.
-// This object provides a memory buffer for the related data, and it can be used
-// to actually share that memory with another instance of the class.
-//
-// The following example shows how to share storage with another object:
-//    StorageBlock<TypeA> a(file, address);
-//    StorageBlock<TypeB> b(file, address);
-//    a.Load();
-//    DoSomething(a.Data());
-//    b.SetData(a.Data());
-//    ModifySomething(b.Data());
-//    // Data modified on the previous call will be saved by b's destructor.
-//    b.set_modified();
-template<typename T>
-class StorageBlock : public FileBlock {
- public:
-  StorageBlock(MappedFile* file, Addr address);
-  virtual ~StorageBlock();
-
-  // FileBlock interface.
-  void* buffer() const override;
-  size_t size() const override;
-  int offset() const override;
-
-  // Allows the overide of dummy values passed on the constructor.
-  bool LazyInit(MappedFile* file, Addr address);
-
-  // Sets the internal storage to share the memory provided by other instance.
-  void SetData(T* other);
-
-  // Deletes the data, even if it was modified and not saved. This object must
-  // own the memory buffer (it cannot be shared).
-  void Discard();
-
-  // Stops sharing the data with another object.
-  void StopSharingData();
-
-  // Sets the object to lazily save the in-memory data on destruction.
-  void set_modified();
-
-  // Forgets that the data was modified, so it's not lazily saved.
-  void clear_modified();
-
-  // Gets a pointer to the internal storage (allocates storage if needed).
-  T* Data();
-
-  // Returns true if there is data associated with this object.
-  bool HasData() const;
-
-  // Returns true if the internal hash is correct.
-  bool VerifyHash() const;
-
-  // Returns true if this object owns the data buffer, false if it is shared.
-  bool own_data() const;
-
-  const Addr address() const;
-
-  // Loads and store the data.
-  bool Load();
-  bool Store();
-  bool Load(FileIOCallback* callback, bool* completed);
-  bool Store(FileIOCallback* callback, bool* completed);
-
- private:
-  void AllocateData();
-  void DeleteData();
-  uint32 CalculateHash() const;
-
-  T* data_;
-  MappedFile* file_;
-  Addr address_;
-  bool modified_;
-  bool own_data_;  // Is data_ owned by this object or shared with someone else.
-  bool extended_;  // Used to store an entry of more than one block.
-
-  DISALLOW_COPY_AND_ASSIGN(StorageBlock);
-};
-
-}  // namespace disk_cache
-
-#endif  // NET_DISK_CACHE_BLOCKFILE_STORAGE_BLOCK_H_