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

components/sync/test/fake_server/fake_server_verifier.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/fake_server/fake_server_verifier.h"
 
-#include <stddef.h>
-
 #include <map>
 #include <memory>
 #include <set>
 #include <vector>
 
 #include "base/json/json_writer.h"
-#include "base/values.h"
-#include "components/sync/base/model_type.h"
 #include "components/sync/test/fake_server/fake_server.h"
-#include "components/sync/test/fake_server/sessions_hierarchy.h"
-#include "testing/gtest/include/gtest/gtest.h"
 
 using base::JSONWriter;
 using std::string;
 using testing::AssertionFailure;
 using testing::AssertionResult;
 using testing::AssertionSuccess;
 
 namespace fake_server {
 
 namespace {
@@ skipping 148 matching lines @@
         return AssertionFailure() << "Malformed data: Tab entity not found.";
       }
       tab_urls.insert(tab_ids_to_urls[tab_id]);
     }
     actual_sessions.AddWindow(tab_urls);
   }
   return VerifySessionsHierarchyEquality(expected_sessions, actual_sessions);
 }
 
 }  // namespace fake_server