Add data usage tracking for supervised_user service

chrome/browser/supervised_user/child_accounts/family_info_fetcher.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 "chrome/browser/supervised_user/child_accounts/family_info_fetcher.h"
 
 #include <stddef.h>
 
 #include "base/json/json_reader.h"
 #include "base/macros.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_request_status.h"
 #include "url/gurl.h"
 
 const char kFamilyApiUrl[] = "https://www.googleapis.com/kidsmanagement/v1/";
 const char kGetFamilyProfileApiSuffix[] = "families/mine?alt=json";
 const char kGetFamilyMembersApiSuffix[] = "families/mine/members?alt=json";
 const char kScope[] = "https://www.googleapis.com/auth/kid.family.readonly";
 const char kAuthorizationHeaderFormat[] = "Authorization: Bearer %s";
@@ skipping 145 matching lines @@
     const OAuth2TokenService::Request* request,
     const std::string& access_token,
     const base::Time& expiration_time) {
   DCHECK_EQ(access_token_request_.get(), request);
   access_token_ = access_token;
 
   GURL url(kFamilyApiUrl + request_suffix_);
   const int id = 0;
   url_fetcher_ = net::URLFetcher::Create(id, url, request_type_, this);
 
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      url_fetcher_.get(),
+      data_use_measurement::DataUseUserData::SUPERVISED_USER);
   url_fetcher_->SetRequestContext(request_context_);
   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                              net::LOAD_DO_NOT_SAVE_COOKIES);
   url_fetcher_->SetAutomaticallyRetryOnNetworkChanges(kNumRetries);
   url_fetcher_->AddExtraRequestHeader(
       base::StringPrintf(kAuthorizationHeaderFormat, access_token.c_str()));
 
   url_fetcher_->Start();
 }
 
@@ skipping 128 matching lines @@
     consumer_->OnFailure(SERVICE_ERROR);
     return;
   }
   std::vector<FamilyMember> members;
   if (!ParseMembers(members_list, &members)){
     consumer_->OnFailure(SERVICE_ERROR);
     return;
   }
   consumer_->OnGetFamilyMembersSuccess(members);
 }