WebSQL: Use url::Origin rather than database identifiers for IPC

content/child/db_message_filter.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.
 
 #ifndef CONTENT_CHILD_DB_MESSAGE_FILTER_H_
 #define CONTENT_CHILD_DB_MESSAGE_FILTER_H_
 
 #include <stdint.h>
 
 #include "base/strings/string16.h"
 #include "ipc/message_filter.h"
 
+namespace url {
+class Origin;
+}  // namespace url
+
 namespace content {
 
 // Receives database messages from the browser process and processes them on the
 // IO thread.
 class DBMessageFilter : public IPC::MessageFilter {
  public:
   DBMessageFilter();
 
   // IPC::MessageFilter
   bool OnMessageReceived(const IPC::Message& message) override;
 
  protected:
   ~DBMessageFilter() override {}
 
  private:
-  void OnDatabaseUpdateSize(const std::string& origin_identifier,
+  void OnDatabaseUpdateSize(const url::Origin& origin,
                             const base::string16& database_name,
                             int64_t database_size);
-  void OnDatabaseUpdateSpaceAvailable(const std::string& origin_identifier,
+  void OnDatabaseUpdateSpaceAvailable(const url::Origin& origin,
                                       int64_t space_available);
-  void OnDatabaseResetSpaceAvailable(const std::string& origin_identifier);
-  void OnDatabaseCloseImmediately(const std::string& origin_identifier,
+  void OnDatabaseResetSpaceAvailable(const url::Origin& origin);
+  void OnDatabaseCloseImmediately(const url::Origin& origin,
                                   const base::string16& database_name);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_DB_MESSAGE_FILTER_H_