Move all components/offline_pages/ files into component/offline_pages/core

components/offline_pages/offline_event_logger.cc

-// Copyright 2016 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 "base/strings/stringprintf.h"
-#include "base/time/time.h"
-#include "components/offline_pages/offline_event_logger.h"
-
-namespace offline_pages {
-
-OfflineEventLogger::OfflineEventLogger()
-    : activities_(kMaxLogCount), is_logging_(false) {}
-
-OfflineEventLogger::~OfflineEventLogger() {}
-
-void OfflineEventLogger::SetIsLogging(bool is_logging) {
-  is_logging_ = is_logging;
-}
-
-bool OfflineEventLogger::GetIsLogging() {
-  return is_logging_;
-}
-
-void OfflineEventLogger::Clear() {
-  activities_.clear();
-}
-
-void OfflineEventLogger::RecordActivity(const std::string& activity) {
-  if (!is_logging_) {
-    return;
-  }
-  if (activities_.size() == kMaxLogCount)
-    activities_.pop_back();
-
-  base::Time::Exploded current_time;
-  base::Time::Now().LocalExplode(&current_time);
-
-  std::string date_string = base::StringPrintf(
-      "%d %02d %02d %02d:%02d:%02d",
-      current_time.year,
-      current_time.month,
-      current_time.day_of_month,
-      current_time.hour,
-      current_time.minute,
-      current_time.second);
-
-  activities_.push_front(date_string + ": " + activity);
-}
-
-void OfflineEventLogger::GetLogs(std::vector<std::string>* records) {
-  DCHECK(records);
-  for (std::deque<std::string>::iterator it = activities_.begin();
-       it != activities_.end(); it++) {
-    if (!it->empty())
-      records->push_back(*it);
-  }
-}
-
-}  // namespace offline_pages