Remove last dependency of HistoryService on //content

chrome/browser/history/history_service.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 CHROME_BROWSER_HISTORY_HISTORY_SERVICE_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_SERVICE_H_
 
 #include <set>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/callback_list.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "base/threading/thread_checker.h"
 #include "base/time/time.h"
 #include "chrome/browser/history/delete_directive_handler.h"
 #include "chrome/browser/history/typed_url_syncable_service.h"
-#include "chrome/common/ref_counted_util.h"
 #include "components/favicon_base/favicon_callback.h"
 #include "components/history/core/browser/history_client.h"
 #include "components/history/core/browser/keyword_id.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "components/visitedlink/browser/visitedlink_delegate.h"
-#include "content/public/browser/download_manager_delegate.h"
 #include "sql/init_status.h"
 #include "sync/api/syncable_service.h"
 #include "ui/base/page_transition_types.h"
 
 #if defined(OS_ANDROID)
 class AndroidHistoryProviderService;
 #endif
 
 class GURL;
 class PageUsageData;
@@ skipping 328 matching lines @@
   typedef base::Callback<void(bool)> DownloadCreateCallback;
 
   // Begins a history request to create a new row for a download. 'info'
   // contains all the download's creation state, and 'callback' runs when the
   // history service request is complete. The callback is called on the thread
   // that calls CreateDownload().
   void CreateDownload(
       const history::DownloadRow& info,
       const DownloadCreateCallback& callback);
 
+  // Implemented by the caller of 'GetNextDownloadId' below, and is called with
+  // the maximum id of all downloads records in the database plus 1.
+  typedef base::Callback<void(uint32)> DownloadIdCallback;
+
   // Responds on the calling thread with the maximum id of all downloads records
   // in the database plus 1.
-  void GetNextDownloadId(const content::DownloadIdCallback& callback);
+  void GetNextDownloadId(const DownloadIdCallback& callback);
 
   // Implemented by the caller of 'QueryDownloads' below, and is called when the
   // history service has retrieved a list of all download state. The call
   typedef base::Callback<void(
       scoped_ptr<std::vector<history::DownloadRow> >)>
           DownloadQueryCallback;
 
   // Begins a history request to retrieve the state of all downloads in the
   // history db. 'callback' runs when the history service request is complete,
   // at which point 'info' contains an array of history::DownloadRow, one per
@@ skipping 441 matching lines @@
 
   history::DeleteDirectiveHandler delete_directive_handler_;
 
   // All vended weak pointers are invalidated in Cleanup().
   base::WeakPtrFactory<HistoryService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryService);
 };
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_SERVICE_H_