[Clean up] Move VariationsHttpHeaderProvider into a subdirectory.

components/suggestions/suggestions_service.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/suggestions/suggestions_service.h"
 
 #include <sstream>
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/suggestions/blacklist_store.h"
 #include "components/suggestions/suggestions_store.h"
+#include "components/variations/net/variations_http_header_provider.h"
 #include "components/variations/variations_associated_data.h"
-#include "components/variations/variations_http_header_provider.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/base/url_util.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/http/http_util.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
@@ skipping 384 matching lines @@
   if (last_request_successful) {
     blacklist_delay_sec_ = kBlacklistDefaultDelaySec;
   } else {
     int candidate_delay = blacklist_delay_sec_ * kBlacklistBackoffMultiplier;
     if (candidate_delay < kBlacklistMaxDelaySec)
       blacklist_delay_sec_ = candidate_delay;
   }
 }
 
 }  // namespace suggestions