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

google_apis/gaia/gaia_auth_fetcher.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_auth_fetcher.h"
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/macros.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "google_apis/gaia/gaia_auth_consumer.h"
 #include "google_apis/gaia/gaia_constants.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 #include "net/base/escape.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_response_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_context_getter.h"
@@ skipping 191 matching lines @@
 void GaiaAuthFetcher::CreateAndStartGaiaFetcher(const std::string& body,
                                                 const std::string& headers,
                                                 const GURL& gaia_gurl,
                                                 int load_flags) {
   DCHECK(!fetch_pending_) << "Tried to fetch two things at once!";
   fetcher_ = net::URLFetcher::Create(
       0, gaia_gurl, body.empty() ? net::URLFetcher::GET : net::URLFetcher::POST,
       this);
   fetcher_->SetRequestContext(getter_);
   fetcher_->SetUploadData("application/x-www-form-urlencoded", body);
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      fetcher_.get(), data_use_measurement::DataUseUserData::GAIA_AUTH_FETCHER);
 
   VLOG(2) << "Gaia fetcher URL: " << gaia_gurl.spec();
   VLOG(2) << "Gaia fetcher headers: " << headers;
   VLOG(2) << "Gaia fetcher body: " << body;
 
   // The Gaia token exchange requests do not require any cookie-based
   // identification as part of requests.  We suppress sending any cookies to
   // maintain a separation between the user's browsing and Chrome's internal
   // services.  Where such mixing is desired (MergeSession or OAuthLogin), it
   // will be done explicitly.
@@ skipping 771 matching lines @@
   return alleged_error.find(kSecondFactor) !=
       std::string::npos;
 }
 
 // static
 bool GaiaAuthFetcher::IsWebLoginRequiredSuccess(
     const std::string& alleged_error) {
   return alleged_error.find(kWebLoginRequired) !=
       std::string::npos;
 }