[Sync] Move some directory-related things from core/ to syncable/.

components/sync/core/write_node.h

Index: components/sync/core/write_node.h
diff --git a/components/sync/core/write_node.h b/components/sync/core/write_node.h
deleted file mode 100644
index 1c23cb3d57dc289aedbcb806a2998c49c2ce7e61..0000000000000000000000000000000000000000
--- a/components/sync/core/write_node.h
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright 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.
-
-#ifndef COMPONENTS_SYNC_CORE_WRITE_NODE_H_
-#define COMPONENTS_SYNC_CORE_WRITE_NODE_H_
-
-#include <stddef.h>
-#include <stdint.h>
-
-#include <string>
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "components/sync/base/model_type.h"
-#include "components/sync/core/base_node.h"
-
-namespace sync_pb {
-class BookmarkSpecifics;
-class EntitySpecifics;
-class NigoriSpecifics;
-class PasswordSpecificsData;
-class TypedUrlSpecifics;
-}
-
-namespace syncer {
-
-class Cryptographer;
-class WriteTransaction;
-
-namespace syncable {
-class Id;
-class Entry;
-class MutableEntry;
-}
-
-// WriteNode extends BaseNode to add mutation, and wraps
-// syncable::MutableEntry. A WriteTransaction is needed to create a WriteNode.
-class WriteNode : public BaseNode {
- public:
-  enum InitUniqueByCreationResult {
-    INIT_SUCCESS,
-    // The tag passed into this method was empty.
-    INIT_FAILED_EMPTY_TAG,
-    // The constructor for a new MutableEntry with the specified data failed.
-    INIT_FAILED_COULD_NOT_CREATE_ENTRY,
-    // Setting the predecessor failed
-    INIT_FAILED_SET_PREDECESSOR,
-    // Found existing entry, but was unable to decrypt.
-    INIT_FAILED_DECRYPT_EXISTING_ENTRY,
-  };
-
-  // Create a WriteNode using the given transaction.
-  explicit WriteNode(WriteTransaction* transaction);
-  ~WriteNode() override;
-
-  // A client must use one (and only one) of the following Init variants to
-  // populate the node.
-
-  // BaseNode implementation.
-  InitByLookupResult InitByIdLookup(int64_t id) override;
-  InitByLookupResult InitByClientTagLookup(ModelType model_type,
-                                           const std::string& tag) override;
-
-  // Create a new bookmark node with the specified parent and predecessor.  Use
-  // a NULL |predecessor| to indicate that this is to be the first child.
-  // |predecessor| must be a child of |new_parent| or NULL. Returns false on
-  // failure.
-  bool InitBookmarkByCreation(const BaseNode& parent,
-                              const BaseNode* predecessor);
-
-  // Create nodes using this function if they're unique items that
-  // you want to fetch using client_tag. Note that the behavior of these
-  // items is slightly different than that of normal items.
-  // Most importantly, if it exists locally but is deleted, this function will
-  // actually undelete it. Otherwise it will reuse the existing node.
-  // Client unique tagged nodes must NOT be folders.
-  InitUniqueByCreationResult InitUniqueByCreation(
-      ModelType model_type,
-      const BaseNode& parent,
-      const std::string& client_tag);
-
-  // InitUniqueByCreation overload for model types without hierarchy.
-  // The parent node isn't stored but is assumed to be the type root folder.
-  InitUniqueByCreationResult InitUniqueByCreation(
-      ModelType model_type,
-      const std::string& client_tag);
-
-  // Looks up the type's root folder.  This is usually created by the sync
-  // server during initial sync, though we do eventually wish to remove it from
-  // the protocol and have the client "fake it" instead.
-  InitByLookupResult InitTypeRoot(ModelType type);
-
-  // These Set() functions correspond to the Get() functions of BaseNode.
-  void SetIsFolder(bool folder);
-  void SetTitle(const std::string& title);
-
-  // External ID is a client-only field, so setting it doesn't cause the item to
-  // be synced again.
-  void SetExternalId(int64_t external_id);
-
-  // Remove this node and its children and sync deletion to server.
-  void Tombstone();
-
-  // If the node is known by server, remove it and its children but don't sync
-  // deletion to server. Do nothing if the node is not known by server so that
-  // server can have a record of the node.
-  void Drop();
-
-  // Set a new parent and position.  Position is specified by |predecessor|; if
-  // it is NULL, the node is moved to the first position.  |predecessor| must
-  // be a child of |new_parent| or NULL.  Returns false on failure..
-  bool SetPosition(const BaseNode& new_parent, const BaseNode* predecessor);
-
-  // Set the bookmark specifics (url and favicon).
-  // Should only be called if GetModelType() == BOOKMARK.
-  void SetBookmarkSpecifics(const sync_pb::BookmarkSpecifics& specifics);
-
-  // Generic set specifics method. Will extract the model type from |specifics|.
-  void SetEntitySpecifics(const sync_pb::EntitySpecifics& specifics);
-
-  // Resets the EntitySpecifics for this node based on the unencrypted data.
-  // Will encrypt if necessary.
-  void ResetFromSpecifics();
-
-  // TODO(sync): Remove the setters below when the corresponding data
-  // types are ported to the new sync service API.
-
-  // Set the nigori specifics.
-  // Should only be called if GetModelType() == NIGORI.
-  void SetNigoriSpecifics(const sync_pb::NigoriSpecifics& specifics);
-
-  // Set the password specifics.
-  // Should only be called if GetModelType() == PASSWORD.
-  void SetPasswordSpecifics(const sync_pb::PasswordSpecificsData& specifics);
-
-  // Set the typed_url specifics (url, title, typed_count, etc).
-  // Should only be called if GetModelType() == TYPED_URLS.
-  void SetTypedUrlSpecifics(const sync_pb::TypedUrlSpecifics& specifics);
-
-  // Set the attachment metadata.
-  void SetAttachmentMetadata(
-      const sync_pb::AttachmentMetadata& attachment_metadata);
-
-  // Implementation of BaseNode's abstract virtual accessors.
-  const syncable::Entry* GetEntry() const override;
-
-  const BaseTransaction* GetTransaction() const override;
-
-  syncable::MutableEntry* GetMutableEntryForTest();
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(SyncManagerTest, EncryptBookmarksWithLegacyData);
-
-  void* operator new(size_t size);  // Node is meant for stack use only.
-
-  InitUniqueByCreationResult InitUniqueByCreationImpl(
-      ModelType model_type,
-      const syncable::Id& parent_id,
-      const std::string& client_tag);
-
-  // Helper to set the previous node.
-  bool PutPredecessor(const BaseNode* predecessor) WARN_UNUSED_RESULT;
-
-  // Sets IS_UNSYNCED and SYNCING to ensure this entry is considered in an
-  // upcoming commit pass.
-  void MarkForSyncing();
-
-  // The underlying syncable object which this class wraps.
-  syncable::MutableEntry* entry_;
-
-  // The sync API transaction that is the parent of this node.
-  WriteTransaction* transaction_;
-
-  DISALLOW_COPY_AND_ASSIGN(WriteNode);
-};
-
-}  // namespace syncer
-
-#endif  // COMPONENTS_SYNC_CORE_WRITE_NODE_H_