[Offline pages] Removing bookmarks dependency from offline pages component

components/offline_pages/offline_page_metadata_store_impl.cc

 // Copyright 2015 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.
 
 #include "components/offline_pages/offline_page_metadata_store_impl.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
@@ skipping 156 matching lines @@
       // Legacy storage.  We upgrade them to the new offline_id keyed storage.
       // TODO(bburns): Remove this eventually when we are sure everyone is
       // upgraded.
       if (!entry.has_offline_id()) {
         item.offline_id = OfflinePageModel::GenerateOfflineId();
 
         if (!entry.has_deprecated_bookmark_id()) {
           LOG(ERROR) << "unexpected entry missing bookmark id";
           continue;
         }
-        item.client_id.name_space = offline_pages::BOOKMARK_NAMESPACE;
+        item.client_id.name_space = offline_pages::kBookmarkNamespace;
         item.client_id.id = base::Int64ToString(entry.deprecated_bookmark_id());
 
         OfflinePageEntry upgraded_entry;
         OfflinePageItemToEntry(item, &upgraded_entry);
         entries_to_update->push_back(
             std::make_pair(base::Int64ToString(upgraded_entry.offline_id()),
                            upgraded_entry));
         // Remove the old entry that is indexed with deprecated id.
         keys_to_remove->push_back(item.client_id.id);
       }
@@ skipping 121 matching lines @@
     bool success) {
   // If the update failed, log and keep going.  We'll try to
   // update next time.
   if (!success) {
     LOG(ERROR) << "Failed to update database";
   }
   NotifyLoadResult(cb, status, result);
 }
 
 }  // namespace offline_pages