Remove legacy migration code that coupled history and bookmarks.

chrome/browser/history/starred_url_database.h

-// Copyright (c) 2011 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 CHROME_BROWSER_HISTORY_STARRED_URL_DATABASE_H_
-#define CHROME_BROWSER_HISTORY_STARRED_URL_DATABASE_H_
-
-#include <set>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/string16.h"
-#include "chrome/browser/history/history_types.h"
-#include "chrome/browser/history/url_database.h"
-#include "ui/base/models/tree_node_model.h"
-
-class FilePath;
-
-namespace history {
-
-// Bookmarks were originally part of the url database, they have since been
-// moved to a separate file. This file exists purely for historical reasons and
-// contains just enough to allow migration.
-class StarredURLDatabase : public URLDatabase {
- public:
-  explicit StarredURLDatabase(sql::Connection* db);
-  virtual ~StarredURLDatabase();
-
-  // Writes bookmarks to the specified file.
-  bool MigrateBookmarksToFile(const FilePath& path);
-
- protected:
-  friend class StarredURLDatabaseTest;
-
-  // ID (both star_id and folder_id) of the bookmark bar.
-  // This entry always exists.
-  static const int64 kBookmarkBarID;
-
-  // Returns the database for the functions in this interface.
-  virtual sql::Connection& GetDB() OVERRIDE;
-
- private:
-  // Used when checking integrity of starred table.
-  typedef ui::TreeNodeWithValue<StarredEntry> StarredNode;
-
-  // Makes sure the starred table is in a sane state. This does the following:
-  // . Makes sure there is a bookmark bar and other nodes. If no bookmark bar
-  //   node is found, the table is dropped and recreated.
-  // . Removes any bookmarks with no URL. This can happen if a URL is removed
-  //   from the urls table without updating the starred table correctly.
-  // . Makes sure the visual order of all nodes is correct.
-  // . Moves all bookmarks and folders that are not descendants of the bookmark
-  //   bar or other folders to the bookmark bar.
-  // . Makes sure there isn't a cycle in the folders. A cycle means some folder
-  //   has as its parent one of its children.
-  //
-  // This returns false if the starred table is in a bad state and couldn't
-  // be fixed, true otherwise.
-  //
-  // This should be invoked after migration.
-  bool EnsureStarredIntegrity();
-
-  // Gets all the starred entries.
-  bool GetAllStarredEntries(std::vector<StarredEntry>* entries);
-
-  // Sets the title, parent_id, parent_folder_id, visual_order and date_modifed
-  // of the specified star entry.
-  //
-  // WARNING: Does not update the visual order.
-  bool UpdateStarredEntryRow(StarID star_id,
-                             const string16& title,
-                             UIStarID parent_folder_id,
-                             int visual_order,
-                             base::Time date_modified);
-
-  // Adjusts the visual order of all children of parent_folder_id with a
-  // visual_order >= start_visual_order by delta. For example,
-  // AdjustStarredVisualOrder(10, 0, 1) increments the visual order all children
-  // of folder 10 with a visual order >= 0 by 1.
-  bool AdjustStarredVisualOrder(UIStarID parent_folder_id,
-                                int start_visual_order,
-                                int delta);
-
-  // Creates a starred entry with the specified parameters in the database.
-  // Returns the newly created id, or 0 on failure.
-  //
-  // WARNING: Does not update the visual order.
-  StarID CreateStarredEntryRow(URLID url_id,
-                               UIStarID folder_id,
-                               UIStarID parent_folder_id,
-                               const string16& title,
-                               const base::Time& date_added,
-                               int visual_order,
-                               StarredEntry::Type type);
-
-  // Deletes the entry from the starred database base on the starred id (NOT
-  // the url id).
-  //
-  // WARNING: Does not update the visual order.
-  bool DeleteStarredEntryRow(StarID star_id);
-
-  // Gets the details for the specified star entry in entry.
-  bool GetStarredEntry(StarID star_id, StarredEntry* entry);
-
-  // Creates a starred entry with the requested information. The structure will
-  // be updated with the ID of the newly created entry. The URL table will be
-  // updated to point to the entry. The URL row will be created if it doesn't
-  // exist.
-  //
-  // We currently only support one entry per URL. This URL should not already be
-  // starred when calling this function or it will fail and will return 0.
-  StarID CreateStarredEntry(StarredEntry* entry);
-
-  // Returns the max folder id, or 0 if there is an error.
-  UIStarID GetMaxFolderID();
-
-  // Gets all the bookmarks and folders creating a StarredNode for each
-  // bookmark and folder. On success all the root nodes (bookmark bar node,
-  // other folder node, folders with no parent or folders with a parent that
-  // would make a cycle) are added to roots.
-  //
-  // If a folder_id occurs more than once, all but the first ones id is added to
-  // folders_with_duplicate_ids.
-  //
-  // All bookmarks not on the bookmark bar/other folder are added to
-  // unparented_urls.
-  //
-  // It's up to the caller to delete the nodes returned in roots and
-  // unparented_urls.
-  //
-  // This is used during integrity enforcing/checking of the starred table.
-  bool BuildStarNodes(
-      std::set<StarredNode*>* roots,
-      std::set<StarID>* folders_with_duplicate_ids,
-      std::set<StarredNode*>* unparented_urls,
-      std::set<StarID>* empty_url_ids);
-
-  // Sets the visual order of all of node's children match the order in |node|.
-  // If the order differs, the database is updated. Returns false if the order
-  // differed and the db couldn't be updated.
-  bool EnsureVisualOrder(StarredNode* node);
-
-  // Returns the first node in nodes with the specified type, or null if there
-  // is not a node with the specified type.
-  StarredNode* GetNodeByType(
-      const std::set<StarredNode*>& nodes,
-      StarredEntry::Type type);
-
-  // Implementation for setting starred integrity. See description of
-  // EnsureStarredIntegrity for the details of what this does.
-  //
-  // All entries in roots that are not the bookmark bar and other node are
-  // moved to be children of the bookmark bar node. Similarly all nodes
-  // in unparented_urls are moved to be children of the bookmark bar.
-  //
-  // Returns true on success, false if the starred table is in a bad state and
-  // couldn't be repaired.
-  bool EnsureStarredIntegrityImpl(
-      std::set<StarredNode*>* roots,
-      const std::set<StarID>& folders_with_duplicate_ids,
-      std::set<StarredNode*>* unparented_urls,
-      const std::set<StarID>& empty_url_ids);
-
-  // Resets the visual order and parent_folder_id of source's StarredEntry
-  // and adds it to the end of new_parent's children.
-  //
-  // This is used if the starred table is an unexpected state and an entry
-  // needs to be moved.
-  bool Move(StarredNode* source, StarredNode* new_parent);
-
-  // Does the work of migrating bookmarks to a temporary file that
-  // BookmarkStorage will read from.
-  bool MigrateBookmarksToFileImpl(const FilePath& path);
-
-  sql::Connection* db_;
-
-  DISALLOW_COPY_AND_ASSIGN(StarredURLDatabase);
-};
-
-}  // namespace history
-
-#endif  // CHROME_BROWSER_HISTORY_STARRED_URL_DATABASE_H_