Componentize HistoryDatabase

components/history/core/browser/download_database.h

 // 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 COMPONENTS_HISTORY_CORE_BROWSER_DOWNLOAD_DATABASE_H_
 #define COMPONENTS_HISTORY_CORE_BROWSER_DOWNLOAD_DATABASE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/threading/platform_thread.h"
 #include "components/history/core/browser/download_types.h"
 #include "sql/meta_table.h"
 
 namespace sql {
 class Connection;
 }
 
 namespace history {
 
 struct DownloadRow;
 
 // Maintains a table of downloads.
 class DownloadDatabase {
  public:
   // Must call InitDownloadTable before using any other functions.
-  DownloadDatabase(DownloadInterruptReason download_interrupt_no_reason,
-                   DownloadInterruptReason download_interrupt_crash);
+  DownloadDatabase(DownloadInterruptReason download_interrupt_reason_none,
+                   DownloadInterruptReason download_interrupt_reason_crash);
   virtual ~DownloadDatabase();
 
   uint32 GetNextDownloadId();
 
   // Get all the downloads from the database.
   void QueryDownloads(std::vector<DownloadRow>* results);
 
   // Update the state of one download. Returns true if successful.
   // Does not update |url|, |start_time|; uses |id| only
   // to select the row in the database table to update.
@@ skipping 64 matching lines @@
   // Initialized to false on construction, and checked in all functional
   // routines post-migration in the database for a possible call to
   // CleanUpInProgressEntries().  This allows us to avoid
   // doing the cleanup until after any DB migration and unless we are
   // actually use the downloads database.
   bool in_progress_entry_cleanup_completed_;
 
   // Those constants are defined in the embedder and injected into the
   // database in the constructor. They represent the interrupt reason
   // to use for respectively an undefined value and in case of a crash.
-  DownloadInterruptReason download_interrupt_no_reason_;
-  DownloadInterruptReason download_interrupt_crash_;
+  DownloadInterruptReason download_interrupt_reason_none_;
+  DownloadInterruptReason download_interrupt_reason_crash_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadDatabase);
 };
 
 }  // namespace history
 
 #endif  // COMPONENTS_HISTORY_CORE_BROWSER_DOWNLOAD_DATABASE_H_