Add data usage tracking for GAIA auth api and GCM engine service

google_apis/gaia/gaia_oauth_client.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 "google_apis/gaia/gaia_oauth_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 #include "base/values.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "url/gurl.h"
 
 namespace {
@@ skipping 152 matching lines @@
   delegate_ = delegate;
   num_retries_ = 0;
   request_ = net::URLFetcher::Create(
       kUrlFetcherId, GURL(GaiaUrls::GetInstance()->oauth_user_info_url()),
       net::URLFetcher::GET, this);
   request_->SetRequestContext(request_context_getter_.get());
   request_->AddExtraRequestHeader("Authorization: OAuth " + oauth_access_token);
   request_->SetMaxRetriesOn5xx(max_retries);
   request_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                          net::LOAD_DO_NOT_SAVE_COOKIES);
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      request_.get(), data_use_measurement::DataUseUserData::GAIA_AUTH_FETCHER);
 
   // Fetchers are sometimes cancelled because a network change was detected,
   // especially at startup and after sign-in on ChromeOS. Retrying once should
   // be enough in those cases; let the fetcher retry up to 3 times just in case.
   // http://crbug.com/163710
   request_->SetAutomaticallyRetryOnNetworkChanges(3);
   request_->Start();
 }
 
 void GaiaOAuthClient::Core::GetTokenInfo(const std::string& qualifier,
@@ skipping 209 matching lines @@
 }
 
 void GaiaOAuthClient::GetTokenHandleInfo(const std::string& token_handle,
                                          int max_retries,
                                          Delegate* delegate) {
   return core_->GetTokenInfo("token_handle", token_handle, max_retries,
                              delegate);
 }
 
 }  // namespace gaia