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

chrome/browser/spellchecker/spellcheck_host_metrics.cc

 // Copyright (c) 2011 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_host_metrics.h"
 
 #include "base/md5.h"
 #include "base/metrics/histogram.h"
 
 SpellCheckHostMetrics::SpellCheckHostMetrics()
@@ skipping 10 matching lines @@
   const uint64 kHistogramTimerDurationInMinutes = 30;
   recording_timer_.Start(FROM_HERE,
       base::TimeDelta::FromMinutes(kHistogramTimerDurationInMinutes),
       this, &SpellCheckHostMetrics::OnHistogramTimerExpired);
   RecordWordCounts();
 }
 
 SpellCheckHostMetrics::~SpellCheckHostMetrics() {
 }
 
+// static
 void SpellCheckHostMetrics::RecordCustomWordCountStats(size_t count) {
   UMA_HISTOGRAM_COUNTS("SpellCheck.CustomWords", count);
 }
 
 void SpellCheckHostMetrics::RecordEnabledStats(bool enabled) {
   UMA_HISTOGRAM_BOOLEAN("SpellCheck.Enabled", enabled);
   // Because SpellCheckHost is instantiated lazily, the size of
   // custom dictionary is unknown at this time. We mark it as -1 and
   // record actual value later. See SpellCheckHost for more detail.
   if (enabled)
@@ skipping 96 matching lines @@
   if (suggestion_show_count_ != last_suggestion_show_count_) {
     DCHECK(suggestion_show_count_ > last_suggestion_show_count_);
     UMA_HISTOGRAM_COUNTS("SpellCheck.ShownSuggestions", suggestion_show_count_);
     last_suggestion_show_count_ = suggestion_show_count_;
   }
 }
 
 void SpellCheckHostMetrics::RecordSpellingServiceStats(bool enabled) {
   UMA_HISTOGRAM_BOOLEAN("SpellCheck.SpellingService.Enabled", enabled);
 }