Report data usage UMA for Chrome services

chrome/browser/spellchecker/spelling_service_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 "chrome/browser/spellchecker/spelling_service_client.h"
 
 #include <algorithm>
 
 #include "base/json/json_reader.h"
 #include "base/json/string_escape.h"
 #include "base/logging.h"
 #include "base/prefs/pref_service.h"
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/spellcheck_common.h"
 #include "chrome/common/spellcheck_result.h"
+#include "components/data_use_measurement/core/data_use_user_data.h"
 #include "components/user_prefs/user_prefs.h"
 #include "content/public/browser/browser_context.h"
 #include "google_apis/google_api_keys.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_fetcher.h"
 #include "url/gurl.h"
 
 namespace {
 
 // The URL for requesting spell checking and sending user feedback.
@@ skipping 67 matching lines @@
   std::string request = base::StringPrintf(
       kSpellingRequest,
       type,
       encoded_text.c_str(),
       language_code.c_str(),
       country_code.c_str(),
       api_key.c_str());
 
   GURL url = GURL(kSpellingServiceURL);
   net::URLFetcher* fetcher = CreateURLFetcher(url).release();
+  data_use_measurement::DataUseUserData::AttachToFetcher(
+      fetcher, data_use_measurement::DataUseUserData::SPELL_CHECKER);
   fetcher->SetRequestContext(context->GetRequestContext());
   fetcher->SetUploadData("application/json", request);
   fetcher->SetLoadFlags(
       net::LOAD_DO_NOT_SEND_COOKIES | net::LOAD_DO_NOT_SAVE_COOKIES);
   spellcheck_fetchers_[fetcher] = new TextCheckCallbackData(callback, text);
   fetcher->Start();
   return true;
 }
 
 bool SpellingServiceClient::IsAvailable(
@@ skipping 146 matching lines @@
 
   // The callback may release the last (transitive) dependency on |this|. It
   // MUST be the last function called.
   callback_data->callback.Run(success, callback_data->text, results);
 }
 
 scoped_ptr<net::URLFetcher> SpellingServiceClient::CreateURLFetcher(
     const GURL& url) {
   return net::URLFetcher::Create(url, net::URLFetcher::POST, this);
 }