[Spellcheck] Record the number of words in the custom dictionary when the custom dictionary is load…

chrome/browser/spellchecker/spellcheck_custom_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_custom_dictionary.h"
 
 #include <functional>
 
 #include "base/file_util.h"
 #include "base/files/important_file_writer.h"
 #include "base/md5.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_split.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/spellchecker/spellcheck_host_metrics.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/spellcheck_messages.h"
 #include "content/public/browser/browser_thread.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_data.h"
 #include "sync/api/sync_error_factory.h"
 #include "sync/protocol/sync.pb.h"
 
 using content::BrowserThread;
 using chrome::spellcheck_common::WordList;
@@ skipping 377 matching lines @@
 }
 
 // static
 WordList SpellcheckCustomDictionary::LoadDictionaryFile(
     const base::FilePath& path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   WordList words;
   LoadDictionaryFileReliably(words, path);
   if (!words.empty() && VALID_CHANGE != SanitizeWordsToAdd(WordList(), words))
     SaveDictionaryFileReliably(words, path);
+  SpellCheckHostMetrics::RecordCustomWordCountStats(words.size());
   return words;
 }
 
 // static
 void SpellcheckCustomDictionary::UpdateDictionaryFile(
     const SpellcheckCustomDictionary::Change& dictionary_change,
     const base::FilePath& path) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   if (dictionary_change.empty())
     return;
@@ skipping 23 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   std::sort(words_.begin(), words_.end());
   Change dictionary_change(custom_words);
   dictionary_change.Sanitize(GetWords());
   Apply(dictionary_change);
   Sync(dictionary_change);
   is_loaded_ = true;
   FOR_EACH_OBSERVER(Observer, observers_, OnCustomDictionaryLoaded());
 }
 
-// TODO(rlp): record metrics on custom word size
 void SpellcheckCustomDictionary::Apply(
     const SpellcheckCustomDictionary::Change& dictionary_change) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!dictionary_change.to_add().empty()) {
     words_.insert(words_.end(),
                   dictionary_change.to_add().begin(),
                   dictionary_change.to_add().end());
   }
   if (!dictionary_change.to_remove().empty()) {
     std::sort(words_.begin(), words_.end());
@@ skipping 79 matching lines @@
 
 void SpellcheckCustomDictionary::Notify(
     const SpellcheckCustomDictionary::Change& dictionary_change) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!IsLoaded() || dictionary_change.empty())
     return;
   FOR_EACH_OBSERVER(Observer,
                     observers_,
                     OnCustomDictionaryChanged(dictionary_change));
 }