[Variations] Bring variations_http_header_provider to variations component

chrome/browser/autocomplete/zero_suggest_provider.cc

 // Copyright (c) 2012 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 "chrome/browser/autocomplete/zero_suggest_provider.h"
 
 #include "base/callback.h"
 #include "base/i18n/case_conversion.h"
 #include "base/json/json_string_value_serializer.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier_factory.h"
 #include "chrome/browser/autocomplete/autocomplete_match.h"
 #include "chrome/browser/autocomplete/autocomplete_provider_listener.h"
 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
 #include "chrome/browser/autocomplete/history_url_provider.h"
 #include "chrome/browser/autocomplete/search_provider.h"
 #include "chrome/browser/history/history_types.h"
 #include "chrome/browser/history/top_sites.h"
-#include "chrome/browser/metrics/variations/variations_http_header_provider.h"
 #include "chrome/browser/omnibox/omnibox_field_trial.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "components/autocomplete/autocomplete_input.h"
 #include "components/metrics/proto/omnibox_input_type.pb.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "components/search_engines/template_url_service.h"
+#include "components/variations/variations_http_header_provider.h"
 #include "content/public/browser/user_metrics.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_util.h"
 #include "net/http/http_request_headers.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 namespace {
@@ skipping 264 matching lines @@
   suggest_results_pending_ = 0;
   const int kFetcherID = 1;
   fetcher_.reset(
       net::URLFetcher::Create(kFetcherID,
           suggest_url,
           net::URLFetcher::GET, this));
   fetcher_->SetRequestContext(profile_->GetRequestContext());
   fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES);
   // Add Chrome experiment state to the request headers.
   net::HttpRequestHeaders headers;
-  chrome_variations::VariationsHttpHeaderProvider::GetInstance()->AppendHeaders(
+  variations::VariationsHttpHeaderProvider::GetInstance()->AppendHeaders(
       fetcher_->GetOriginalURL(), profile_->IsOffTheRecord(), false, &headers);
   fetcher_->SetExtraRequestHeaders(headers.ToString());
   fetcher_->Start();
 
   if (OmniboxFieldTrial::InZeroSuggestMostVisitedFieldTrial()) {
     most_visited_urls_.clear();
     history::TopSites* ts = profile_->GetTopSites();
     if (ts) {
       ts->GetMostVisitedURLs(
           base::Bind(&ZeroSuggestProvider::OnMostVisitedUrlsAvailable,
@@ skipping 125 matching lines @@
   std::string json_data = profile_->GetPrefs()->GetString(
       prefs::kZeroSuggestCachedResults);
   if (!json_data.empty()) {
     scoped_ptr<base::Value> data(DeserializeJsonData(json_data));
     if (data && ParseSuggestResults(*data.get(), false, &results_)) {
       ConvertResultsToAutocompleteMatches();
       results_from_cache_ = !matches_.empty();
     }
   }
 }