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 {
-
-extern const size_t kMaxLogCount = 50;
-
-OfflineEventLogger::OfflineEventLogger()
-    : activities_(0), is_logging_(false), client_(nullptr) {}
-
-OfflineEventLogger::~OfflineEventLogger() {}
-
-void OfflineEventLogger::Clear() {
-  activities_.clear();
-}
-
-void OfflineEventLogger::SetIsLogging(bool is_logging) {
-  is_logging_ = is_logging;
-}
-
-bool OfflineEventLogger::GetIsLogging() {
-  return is_logging_;
-}
-
-void OfflineEventLogger::GetLogs(std::vector<std::string>* records) {
-  DCHECK(records);
-  records->insert(records->end(), activities_.begin(), activities_.end());
-}
-
-void OfflineEventLogger::RecordActivity(const std::string& activity) {
-  if (!is_logging_ || activity.empty())
-    return;
-
-  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);
-
-  std::string log_message = date_string + ": " + activity;
-  if (client_)
-    client_->CustomLog(log_message);
-
-  if (activities_.size() == kMaxLogCount)
-    activities_.pop_back();
-
-  activities_.push_front(log_message);
-}
-
-void OfflineEventLogger::SetClient(Client* client) {
-  DCHECK(client);
-  SetIsLogging(true);
-  client_ = client;
-}
-
-}  // namespace offline_pages