diff options
Diffstat (limited to 'base/prefs/json_pref_store.cc')
| -rw-r--r-- | base/prefs/json_pref_store.cc | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/base/prefs/json_pref_store.cc b/base/prefs/json_pref_store.cc index 9180984..fd95b73 100644 --- a/base/prefs/json_pref_store.cc +++ b/base/prefs/json_pref_store.cc @@ -9,12 +9,15 @@ #include "base/bind.h" #include "base/callback.h" #include "base/file_util.h" +#include "base/files/file_path.h" #include "base/json/json_file_value_serializer.h" #include "base/json/json_string_value_serializer.h" #include "base/memory/ref_counted.h" #include "base/message_loop/message_loop_proxy.h" +#include "base/metrics/histogram.h" #include "base/prefs/pref_filter.h" #include "base/sequenced_task_runner.h" +#include "base/strings/string_util.h" #include "base/threading/sequenced_worker_pool.h" #include "base/values.h" @@ -388,7 +391,27 @@ bool JsonPrefStore::SerializeData(std::string* output) { JSONStringValueSerializer serializer(output); serializer.set_pretty_print(true); - return serializer.Serialize(*prefs_); + bool result = serializer.Serialize(*prefs_); + + if (result) { + std::string spaceless_basename; + base::ReplaceChars(path_.BaseName().MaybeAsASCII(), " ", "_", + &spaceless_basename); + + // The histogram below is an expansion of the UMA_HISTOGRAM_COUNTS_10000 + // macro adapted to allow for a dynamically suffixed histogram name. + // Note: The factory creates and owns the histogram. + base::HistogramBase* histogram = + base::LinearHistogram::FactoryGet( + "Settings.JsonDataSizeKilobytes." + spaceless_basename, + 1, + 10000, + 50, + base::HistogramBase::kUmaTargetedHistogramFlag); + histogram->Add(static_cast<int>(output->size()) / 1024); + } + + return result; } void JsonPrefStore::FinalizeFileRead(bool initialization_successful, |