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

components/sync/test/fake_server/fake_server_http_post_provider.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_http_post_provider.h"
 
-#include <string>
-
 #include "base/bind.h"
 #include "base/location.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/sequenced_task_runner.h"
-#include "base/synchronization/waitable_event.h"
 #include "components/sync/test/fake_server/fake_server.h"
 
 using syncer::HttpPostProviderInterface;
 
 namespace fake_server {
 
 FakeServerHttpPostProviderFactory::FakeServerHttpPostProviderFactory(
     const base::WeakPtr<FakeServer>& fake_server,
     scoped_refptr<base::SequencedTaskRunner> fake_server_task_runner)
     : fake_server_(fake_server),
@@ skipping 84 matching lines @@
 }
 
 const std::string FakeServerHttpPostProvider::GetResponseHeaderValue(
     const std::string& name) const {
   return std::string();
 }
 
 void FakeServerHttpPostProvider::Abort() {}
 
 }  // namespace fake_server