Revert of Create signin component and componentize TokenWebData.

chrome/browser/webdata/token_web_data.h

+// Copyright 2013 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.
+
+// Chromium settings and storage represent user-selected preferences and
+// information and MUST not be extracted, overwritten or modified except
+// through Chromium defined APIs.
+
+#ifndef CHROME_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__
+#define CHROME_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/callback_forward.h"
+#include "base/files/file_path.h"
+#include "base/location.h"
+#include "base/memory/ref_counted.h"
+#include "components/webdata/common/web_data_results.h"
+#include "components/webdata/common/web_data_service_base.h"
+#include "components/webdata/common/web_data_service_consumer.h"
+#include "components/webdata/common/web_database.h"
+
+class TokenWebDataBackend;
+class WebDatabaseService;
+class WebDataServiceConsumer;
+
+namespace content {
+class BrowserContext;
+}
+
+// TokenWebData is a data repository for storage of authentication tokens.
+
+class TokenWebData : public WebDataServiceBase {
+ public:
+  // Retrieve a WebDataService for the given context.
+  static scoped_refptr<TokenWebData> FromBrowserContext(
+      content::BrowserContext* context);
+
+  TokenWebData(scoped_refptr<WebDatabaseService> wdbs,
+               const ProfileErrorCallback& callback);
+
+  // Set a token to use for a specified service.
+  void SetTokenForService(const std::string& service,
+                          const std::string& token);
+
+  // Remove all tokens stored in the web database.
+  void RemoveAllTokens();
+
+  // Removes a token related to |service| from the web database.
+  void RemoveTokenForService(const std::string& service);
+
+  // Null on failure. Success is WDResult<std::vector<std::string> >
+  virtual Handle GetAllTokens(WebDataServiceConsumer* consumer);
+
+ protected:
+  // For unit tests, passes a null callback.
+  TokenWebData();
+
+  virtual ~TokenWebData();
+
+ private:
+  scoped_refptr<TokenWebDataBackend> token_backend_;
+
+  DISALLOW_COPY_AND_ASSIGN(TokenWebData);
+};
+
+#endif  // CHROME_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__