[SyncFS] Remove a friendship between MetadataDatabase and MetadataDatabaseIndex

chrome/browser/sync_file_system/drive_backend/metadata_database_index.cc

 // Copyright 2014 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 "chrome/browser/sync_file_system/drive_backend/metadata_database_index.h"
 
 #include "base/metrics/histogram.h"
 #include "chrome/browser/sync_file_system/drive_backend/drive_backend_constants.h"
 #include "chrome/browser/sync_file_system/drive_backend/metadata_database.pb.h"
 
@@ skipping 192 matching lines @@
 bool MetadataDatabaseIndex::HasDemotedDirtyTracker() const {
   return !demoted_dirty_trackers_.empty();
 }
 
 void MetadataDatabaseIndex::PromoteDemotedDirtyTrackers() {
   dirty_trackers_.insert(demoted_dirty_trackers_.begin(),
                          demoted_dirty_trackers_.end());
   demoted_dirty_trackers_.clear();
 }
 
+size_t MetadataDatabaseIndex::CountDirtyTracker() const {
+  return dirty_trackers_.size() + demoted_dirty_trackers_.size();
+}
+
+size_t MetadataDatabaseIndex::CountFileMetadata() const {
+  return metadata_by_id_.size();
+}
+
+size_t MetadataDatabaseIndex::CountFileTracker() const {
+  return tracker_by_id_.size();
+}
+
 std::vector<std::string> MetadataDatabaseIndex::GetRegisteredAppIDs() const {
   std::vector<std::string> result;
   result.reserve(app_root_by_app_id_.size());
   for (TrackerIDByAppID::const_iterator itr = app_root_by_app_id_.begin();
        itr != app_root_by_app_id_.end(); ++itr)
     result.push_back(itr->first);
   return result;
 }
 
+std::vector<int64> MetadataDatabaseIndex::GetAllTrackerIDs() const {
+  std::vector<int64> result;
+  for (TrackerByID::const_iterator itr = tracker_by_id_.begin();
+       itr != tracker_by_id_.end(); ++itr) {
+    result.push_back(itr->first);
+  }
+  return result;
+}
+
+std::vector<std::string> MetadataDatabaseIndex::GetAllMetadataIDs() const {
+  std::vector<std::string> result;
+  for (MetadataByID::const_iterator itr = metadata_by_id_.begin();
+       itr != metadata_by_id_.end(); ++itr) {
+    result.push_back(itr->first);
+  }
+  return result;
+}
+
 void MetadataDatabaseIndex::AddToAppIDIndex(
     const FileTracker& new_tracker) {
   if (!IsAppRoot(new_tracker))
     return;
 
   DVLOG(3) << "  Add to app_root_by_app_id_: " << new_tracker.app_id();
 
   DCHECK(new_tracker.active());
   DCHECK(!ContainsKey(app_root_by_app_id_, new_tracker.app_id()));
   app_root_by_app_id_[new_tracker.app_id()] = new_tracker.tracker_id();
@@ skipping 238 matching lines @@
 
     DVLOG(3) << "  Remove from dirty_trackers_: " << tracker_id;
     dirty_trackers_.erase(tracker_id);
 
     demoted_dirty_trackers_.erase(tracker_id);
   }
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system