[SyncFS] Rephrase "LowerPriority" to "Demoted" in MetadataDatabase

chrome/browser/sync_file_system/drive_backend/metadata_database.cc

 // Copyright 2013 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.h"
 
 #include <algorithm>
 #include <stack>
 
 #include "base/bind.h"
@@ skipping 1250 matching lines @@
     tracker_to_be_activated->set_needs_folder_listing(true);
   }
   tracker_to_be_activated->set_dirty(false);
 
   index_->StoreFileTracker(tracker_to_be_activated.Pass());
 
   WriteToDatabase(callback);
   return ACTIVATION_PENDING;
 }
 
-void MetadataDatabase::LowerTrackerPriority(int64 tracker_id) {
+void MetadataDatabase::DemoteTracker(int64 tracker_id) {
   DCHECK(worker_sequence_checker_.CalledOnValidSequencedThread());
   index_->DemoteDirtyTracker(tracker_id);
   WriteToDatabase(base::Bind(&EmptyStatusCallback));
 }
 
-bool MetadataDatabase::PromoteLowerPriorityTrackersToNormal() {
+bool MetadataDatabase::PromoteDemotedTrackers() {
   DCHECK(worker_sequence_checker_.CalledOnValidSequencedThread());
   bool promoted = index_->PromoteDemotedDirtyTrackers();
   WriteToDatabase(base::Bind(&EmptyStatusCallback));
   return promoted;
 }
 
 void MetadataDatabase::PromoteDemotedTracker(int64 tracker_id) {
   DCHECK(worker_sequence_checker_.CalledOnValidSequencedThread());
   index_->PromoteDemotedDirtyTracker(tracker_id);
   WriteToDatabase(base::Bind(&EmptyStatusCallback));
 }
 
-bool MetadataDatabase::GetNormalPriorityDirtyTracker(
+bool MetadataDatabase::GetDirtyTracker(
     FileTracker* tracker_out) const {
   DCHECK(worker_sequence_checker_.CalledOnValidSequencedThread());
 
   int64 dirty_tracker_id = index_->PickDirtyTracker();
   if (!dirty_tracker_id)
     return false;
 
   if (tracker_out) {
     if (!index_->GetFileTracker(dirty_tracker_id, tracker_out)) {
       NOTREACHED();
       return false;
     }
   }
   return true;
 }
 
-bool MetadataDatabase::HasLowPriorityDirtyTracker() const {
+bool MetadataDatabase::HasDemotedDirtyTracker() const {
   DCHECK(worker_sequence_checker_.CalledOnValidSequencedThread());
   return index_->HasDemotedDirtyTracker();
 }
 
 bool MetadataDatabase::HasDirtyTracker() const {
   DCHECK(worker_sequence_checker_.CalledOnValidSequencedThread());
   return index_->PickDirtyTracker() != kInvalidTrackerID;
 }
 
 size_t MetadataDatabase::CountDirtyTracker() const {
@@ skipping 660 matching lines @@
       return false;
 
   if (!parents.empty())
     return false;
 
   return true;
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system