Remove last dependency of HistoryService on //content

Introduce a local typedef for the DownloadIdCallback type since it
is really simple.

Remove obsolete #includes.

BUG=453790

Review URL: https://codereview.chromium.org/888983003

Cr-Commit-Position: refs/heads/master@{#314570}

chrome/browser/history/android/android_provider_backend.cc

@@ -5,7 +5,6 @@
 #include "chrome/browser/history/android/android_provider_backend.h"
 
 #include "base/i18n/case_conversion.h"
-#include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/history/android/bookmark_model_sql_handler.h"
 #include "chrome/browser/history/history_backend.h"
 #include "components/history/core/browser/android/android_time.h"

chrome/browser/history/android/bookmark_model_sql_handler.cc

@@ -6,7 +6,6 @@
 
 #include "base/logging.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
-#include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "components/bookmarks/browser/bookmark_model.h"
 #include "components/bookmarks/browser/bookmark_utils.h"

chrome/browser/history/history_service.cc

@@ -741,8 +741,7 @@ void HistoryService::CreateDownload(
       callback);
 }
 
-void HistoryService::GetNextDownloadId(
-    const content::DownloadIdCallback& callback) {
+void HistoryService::GetNextDownloadId(const DownloadIdCallback& callback) {
   DCHECK(thread_) << "History service being called after cleanup";
   DCHECK(thread_checker_.CalledOnValidThread());
   PostTaskAndReplyWithResult(

chrome/browser/history/history_service.h

@@ -24,13 +24,11 @@
 #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"
@@ -379,9 +377,13 @@ class HistoryService : public syncer::SyncableService,
       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