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

components/sync/test/mock_invalidation.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.h"
 
-#include <stdint.h>
-
 #include "base/logging.h"
 #include "components/sync/test/mock_invalidation_tracker.h"
 
 namespace syncer {
 
 std::unique_ptr<MockInvalidation> MockInvalidation::BuildUnknownVersion() {
   return std::unique_ptr<MockInvalidation>(
       new MockInvalidation(true, -1, std::string()));
 }
 
@@ skipping 29 matching lines @@
 }
 
 MockInvalidation::MockInvalidation(bool is_unknown_version,
                                    int64_t version,
                                    const std::string& payload)
     : is_unknown_version_(is_unknown_version),
       version_(version),
       payload_(payload) {}
 
 }  // namespace syncer