New authorization framework for sync. ...

chrome/browser/sync/token_migrator.h

+// Copyright (c) 2010 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.
+
+#include <string>
+
+#include "base/file_path.h"
+#include "base/task.h"
+
+class ProfileSyncService;
+
+// The TokenMigrator provides a bridge between the IO thread and
+// the UI thread to load the old-style credentials from the user
+// settings DB, and post them back to the UI thread to store the
+// token in the token service.
+class TokenMigrator {
+ public:
+  TokenMigrator(ProfileSyncService* service,
+                const FilePath& profile_path);
+  ~TokenMigrator();
+
+  // This is called on the UI thread, it only posts a task.
+  // If migration succeeds, the tokens will become available in
+  // the token service.
+  void TryMigration();
+
+ private:
+  // This runs as a deferred task on the IO thread.

[tim (not reviewing), 2010/09/07 22:01:52]

nit- s / IO / DB

+  void LoadTokens();
+
+  // This runs as a deferred task on the UI thread (only after the IO thread is

[tim (not reviewing), 2010/09/07 22:01:52]

nit s/IO/DB

+  // finished with the data.
+  void PostTokensBack();
+
+  // The username and token retrieved from the user settings DB.
+  std::string username_;
+  std::string token_;
+
+  // The ProfileSyncService owns this object, so this pointer is valid when
+  // PostTokensBack is called.
+  ProfileSyncService* service_;
+
+  // Pending tasks, stored so they can be canceled if this object is destroyed.
+  CancelableTask* loading_task_;
+
+  // The directory to search for the user settings database.
+  FilePath database_location_;

[tim (not reviewing), 2010/09/07 22:01:52]

DISALLOW_COPY_AND_ASSIGN

+};
+
+// We ensure this object will outlive its tasks, so don't need refcounting.
+DISABLE_RUNNABLE_METHOD_REFCOUNT(TokenMigrator);