[Sync] Removing duplicated includes between cc and h files.

components/sync/test/mock_invalidation_tracker.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 "components/sync/test/mock_invalidation_tracker.h"
 
-#include <stdint.h>
-
 #include "base/logging.h"
-#include "components/sync/test/trackable_mock_invalidation.h"
 
 namespace syncer {
 
 std::unique_ptr<TrackableMockInvalidation>
 MockInvalidationTracker::IssueUnknownVersionInvalidation() {
   return std::unique_ptr<TrackableMockInvalidation>(
       new TrackableMockInvalidation(true, -1, std::string(), this, next_id_++));
 }
 
 std::unique_ptr<TrackableMockInvalidation>
@@ skipping 33 matching lines @@
 bool MockInvalidationTracker::AllInvalidationsAccountedFor() const {
   for (int i = 0; i < next_id_; ++i) {
     if (IsUnacked(i)) {
       return false;
     }
   }
   return true;
 }
 
 }  // namespace syncer