Move browsing_data_helper files into a separate directory.

chrome/browser/browsing_data_database_helper.h

Index: chrome/browser/browsing_data_database_helper.h
diff --git a/chrome/browser/browsing_data_database_helper.h b/chrome/browser/browsing_data_database_helper.h
deleted file mode 100644
index 14bec5e30750d62f4ecb57c2f08b54890dc9e65f..0000000000000000000000000000000000000000
--- a/chrome/browser/browsing_data_database_helper.h
+++ /dev/null
@@ -1,167 +0,0 @@
-// 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.
-
-#ifndef CHROME_BROWSER_BROWSING_DATA_DATABASE_HELPER_H_
-#define CHROME_BROWSER_BROWSING_DATA_DATABASE_HELPER_H_
-
-#include <list>
-#include <set>
-#include <string>
-
-#include "base/callback.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/synchronization/lock.h"
-#include "chrome/common/url_constants.h"
-#include "googleurl/src/gurl.h"
-#include "webkit/database/database_tracker.h"
-
-class Profile;
-
-// This class fetches database information in the FILE thread, and notifies
-// the UI thread upon completion.
-// A client of this class need to call StartFetching from the UI thread to
-// initiate the flow, and it'll be notified by the callback in its UI
-// thread at some later point.
-class BrowsingDataDatabaseHelper
-    : public base::RefCountedThreadSafe<BrowsingDataDatabaseHelper> {
- public:
-  // Contains detailed information about a web database.
-  struct DatabaseInfo {
-    DatabaseInfo(const std::string& host,
-                 const std::string& database_name,
-                 const std::string& origin_identifier,
-                 const std::string& description,
-                 const std::string& origin,
-                 int64 size,
-                 base::Time last_modified);
-    ~DatabaseInfo();
-
-    std::string host;
-    std::string database_name;
-    std::string origin_identifier;
-    std::string description;
-    std::string origin;
-    int64 size;
-    base::Time last_modified;
-  };
-
-  explicit BrowsingDataDatabaseHelper(Profile* profile);
-
-  // Starts the fetching process, which will notify its completion via
-  // callback.
-  // This must be called only in the UI thread.
-  virtual void StartFetching(
-      const base::Callback<void(const std::list<DatabaseInfo>&)>& callback);
-
-  // Requests a single database to be deleted in the FILE thread. This must be
-  // called in the UI thread.
-  virtual void DeleteDatabase(const std::string& origin,
-                              const std::string& name);
-
- protected:
-  friend class base::RefCountedThreadSafe<BrowsingDataDatabaseHelper>;
-  virtual ~BrowsingDataDatabaseHelper();
-
-  // Notifies the completion callback. This must be called in the UI thread.
-  void NotifyInUIThread();
-
-  // Access to |database_info_| is triggered indirectly via the UI thread and
-  // guarded by |is_fetching_|. This means |database_info_| is only accessed
-  // while |is_fetching_| is true. The flag |is_fetching_| is only accessed on
-  // the UI thread.
-  // In the context of this class |database_info_| is only accessed on the FILE
-  // thread.
-  std::list<DatabaseInfo> database_info_;
-
-  // This only mutates on the UI thread.
-  base::Callback<void(const std::list<DatabaseInfo>&)> completion_callback_;
-
-  // Indicates whether or not we're currently fetching information:
-  // it's true when StartFetching() is called in the UI thread, and it's reset
-  // after we notify the callback in the UI thread.
-  // This only mutates on the UI thread.
-  bool is_fetching_;
-
- private:
-  // Enumerates all databases. This must be called in the FILE thread.
-  void FetchDatabaseInfoOnFileThread();
-
-  // Delete a single database file. This must be called in the FILE thread.
-  void DeleteDatabaseOnFileThread(const std::string& origin,
-                                  const std::string& name);
-
-  scoped_refptr<webkit_database::DatabaseTracker> tracker_;
-
-  DISALLOW_COPY_AND_ASSIGN(BrowsingDataDatabaseHelper);
-};
-
-// This class is a thin wrapper around BrowsingDataDatabaseHelper that does not
-// fetch its information from the database tracker, but gets them passed as
-// a parameter during construction.
-class CannedBrowsingDataDatabaseHelper : public BrowsingDataDatabaseHelper {
- public:
-  struct PendingDatabaseInfo {
-    PendingDatabaseInfo(const GURL& origin,
-                        const std::string& name,
-                        const std::string& description);
-    ~PendingDatabaseInfo();
-
-    // The operator is needed to store |PendingDatabaseInfo| objects in a set.
-    bool operator<(const PendingDatabaseInfo& other) const;
-
-    GURL origin;
-    std::string name;
-    std::string description;
-  };
-
-  explicit CannedBrowsingDataDatabaseHelper(Profile* profile);
-
-  // Return a copy of the database helper. Only one consumer can use the
-  // StartFetching method at a time, so we need to create a copy of the helper
-  // everytime we instantiate a cookies tree model for it.
-  CannedBrowsingDataDatabaseHelper* Clone();
-
-  // Add a database to the set of canned databases that is returned by this
-  // helper.
-  void AddDatabase(const GURL& origin,
-                   const std::string& name,
-                   const std::string& description);
-
-  // Clear the list of canned databases.
-  void Reset();
-
-  // True if no databases are currently stored.
-  bool empty() const;
-
-  // Returns the number of currently stored databases.
-  size_t GetDatabaseCount() const;
-
-  // Returns the current list of web databases.
-  const std::set<PendingDatabaseInfo>& GetPendingDatabaseInfo();
-
-  // BrowsingDataDatabaseHelper implementation.
-  virtual void StartFetching(
-      const base::Callback<void(const std::list<DatabaseInfo>&)>& callback)
-          OVERRIDE;
-
- private:
-  virtual ~CannedBrowsingDataDatabaseHelper();
-
-  // Converts the pending database info structs to database info structs.
-  void ConvertInfoInWebKitThread();
-
-  // Used to protect access to pending_database_info_.
-  mutable base::Lock lock_;
-
-  // Access to |pending_database_info_| is protected by |lock_| since it may
-  // be accessed on the UI or the WEBKIT thread.
-  std::set<PendingDatabaseInfo> pending_database_info_;
-
-  Profile* profile_;
-
-  DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataDatabaseHelper);
-};
-
-#endif  // CHROME_BROWSER_BROWSING_DATA_DATABASE_HELPER_H_