Report data usage UMA for Chrome services

chrome/browser/spellchecker/spellcheck_hunspell_dictionary.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/spellchecker/spellcheck_hunspell_dictionary.h"
 
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "chrome/browser/spellchecker/spellcheck_platform.h"
 #include "chrome/browser/spellchecker/spellcheck_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/spellcheck_common.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "url/gurl.h"
 
 #if !defined(OS_ANDROID)
 #include "base/files/memory_mapped_file.h"
 #include "third_party/hunspell/google/bdict.h"
@@ skipping 207 matching lines @@
 }
 
 void SpellcheckHunspellDictionary::DownloadDictionary(GURL url) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DCHECK(request_context_getter_);
 
   download_status_ = DOWNLOAD_IN_PROGRESS;
   FOR_EACH_OBSERVER(Observer, observers_, OnHunspellDictionaryDownloadBegin());
 
   fetcher_ = net::URLFetcher::Create(url, net::URLFetcher::GET, this);
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      fetcher_.get(), data_use_measurement::DataUseUserData::SPELL_CHECKER);
   fetcher_->SetRequestContext(request_context_getter_);
   fetcher_->SetLoadFlags(
       net::LOAD_DO_NOT_SEND_COOKIES | net::LOAD_DO_NOT_SAVE_COOKIES);
   fetcher_->Start();
   // Attempt downloading the dictionary only once.
   request_context_getter_ = NULL;
 }
 
 // The default_dictionary_file can either come from the standard list of
 // hunspell dictionaries (determined in InitializeDictionaryLocation), or it
@@ skipping 107 matching lines @@
 void SpellcheckHunspellDictionary::InformListenersOfInitialization() {
   FOR_EACH_OBSERVER(Observer, observers_, OnHunspellDictionaryInitialized());
 }
 
 void SpellcheckHunspellDictionary::InformListenersOfDownloadFailure() {
   download_status_ = DOWNLOAD_FAILED;
   FOR_EACH_OBSERVER(Observer,
                     observers_,
                     OnHunspellDictionaryDownloadFailure());
 }