[Remote suggestions] Measure separate data use for JSONs and thumbnails

components/ntp_snippets/remote/json_request.cc

 // Copyright 2016 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/ntp_snippets/remote/json_request.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 421 matching lines @@
 std::unique_ptr<net::URLFetcher> JsonRequest::Builder::BuildURLFetcher(
     net::URLFetcherDelegate* delegate,
     const std::string& headers,
     const std::string& body) const {
   std::unique_ptr<net::URLFetcher> url_fetcher =
       net::URLFetcher::Create(url_, net::URLFetcher::POST, delegate);
   url_fetcher->SetRequestContext(url_request_context_getter_.get());
   url_fetcher->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                             net::LOAD_DO_NOT_SAVE_COOKIES);
   data_use_measurement::DataUseUserData::AttachToFetcher(
-      url_fetcher.get(), data_use_measurement::DataUseUserData::NTP_SNIPPETS);
+      url_fetcher.get(),
+      data_use_measurement::DataUseUserData::NTP_SNIPPETS_SUGGESTIONS);
 
   url_fetcher->SetExtraRequestHeaders(headers);
   url_fetcher->SetUploadData("application/json", body);
 
   // Fetchers are sometimes cancelled because a network change was detected.
   url_fetcher->SetAutomaticallyRetryOnNetworkChanges(3);
   url_fetcher->SetMaxRetriesOn5xx(
       Get5xxRetryCount(params_.interactive_request));
   return url_fetcher;
 }
@@ skipping 30 matching lines @@
           "NewTabPage.Languages.UILanguageRatioInTwoTopLanguages",
           ratio_ui_in_both_languages * 100);
       break;
     }
   }
 }
 
 }  // namespace internal
 
 }  // namespace ntp_snippets