sync: Inject sync/'s dependency on invalidations

sync/internal_api/public/base/invalidation.cc

 // Copyright 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.
 
 #include "sync/internal_api/public/base/invalidation.h"
 
 #include <cstddef>
 
 #include "base/json/json_string_value_serializer.h"
 #include "base/rand_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "sync/notifier/ack_handler.h"
-#include "sync/notifier/dropped_invalidation_tracker.h"
 #include "sync/notifier/invalidation_util.h"
 
 namespace syncer {
 
 namespace {
 const char kObjectIdKey[] = "objectId";
 const char kIsUnknownVersionKey[] = "isUnknownVersion";
 const char kVersionKey[] = "version";
 const char kPayloadKey[] = "payload";
 const int64 kInvalidVersion = -1;
@@ skipping 96 matching lines @@
 
 void Invalidation::Acknowledge() const {
   if (SupportsAcknowledgement()) {
     ack_handler_.Call(FROM_HERE,
                       &AckHandler::Acknowledge,
                       id_,
                       ack_handle_);
   }
 }
 
-void Invalidation::Drop(DroppedInvalidationTracker* tracker) const {
-  DCHECK(tracker->object_id() == object_id());
-  tracker->RecordDropEvent(ack_handler_, ack_handle_);
+void Invalidation::Drop() {
   if (SupportsAcknowledgement()) {
     ack_handler_.Call(FROM_HERE,
                       &AckHandler::Drop,
                       id_,
                       ack_handle_);
   }
 }
 
 bool Invalidation::Equals(const Invalidation& other) const {
   return id_ == other.id_
@@ skipping 29 matching lines @@
     int64 version,
     const std::string& payload,
     AckHandle ack_handle)
   : id_(id),
     is_unknown_version_(is_unknown_version),
     version_(version),
     payload_(payload),
     ack_handle_(ack_handle) {}
 
 }  // namespace syncer