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

components/offline_pages/snapshot_controller.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 "components/offline_pages/snapshot_controller.h"
-
-#include "base/bind.h"
-#include "base/location.h"
-#include "base/logging.h"
-#include "base/time/time.h"
-
-namespace {
-// Default delay, in milliseconds, between the main document parsed event and
-// snapshot. Note: this snapshot might not occur if the OnLoad event and
-// OnLoad delay elapses first to trigger a final snapshot.
-const size_t kDefaultDelayAfterDocumentAvailableMs = 7000;
-
-// Default delay, in milliseconds, between the main document OnLoad event and
-// snapshot.
-const size_t kDelayAfterDocumentOnLoadCompletedMs = 1000;
-
-}  // namespace
-
-namespace offline_pages {
-
-SnapshotController::SnapshotController(
-    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-    SnapshotController::Client* client)
-    : task_runner_(task_runner),
-      client_(client),
-      state_(State::READY),
-      delay_after_document_available_ms_(
-          kDefaultDelayAfterDocumentAvailableMs),
-      delay_after_document_on_load_completed_ms_(
-          kDelayAfterDocumentOnLoadCompletedMs),
-      weak_ptr_factory_(this) {}
-
-SnapshotController::SnapshotController(
-    const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
-    SnapshotController::Client* client,
-    size_t delay_after_document_available_ms,
-    size_t delay_after_document_on_load_completed_ms)
-    : task_runner_(task_runner),
-      client_(client),
-      state_(State::READY),
-      delay_after_document_available_ms_(
-          delay_after_document_available_ms),
-      delay_after_document_on_load_completed_ms_(
-          delay_after_document_on_load_completed_ms),
-      weak_ptr_factory_(this) {}
-
-SnapshotController::~SnapshotController() {}
-
-void SnapshotController::Reset() {
-  // Cancel potentially delayed tasks that relate to the previous 'session'.
-  weak_ptr_factory_.InvalidateWeakPtrs();
-  state_ = State::READY;
-}
-
-void SnapshotController::Stop() {
-  state_ = State::STOPPED;
-}
-
-void SnapshotController::PendingSnapshotCompleted() {
-  // Unless the controller is "stopped", enable the subsequent snapshots.
-  // Stopped state prevents any further snapshots form being started.
-  if (state_ == State::STOPPED)
-    return;
-  state_ = State::READY;
-}
-
-void SnapshotController::DocumentAvailableInMainFrame() {
-  // Post a delayed task to snapshot.
-  task_runner_->PostDelayedTask(
-      FROM_HERE, base::Bind(&SnapshotController::MaybeStartSnapshot,
-                            weak_ptr_factory_.GetWeakPtr()),
-      base::TimeDelta::FromMilliseconds(
-          delay_after_document_available_ms_));
-}
-
-void SnapshotController::DocumentOnLoadCompletedInMainFrame() {
-  // Post a delayed task to snapshot and then stop this controller.
-  task_runner_->PostDelayedTask(
-      FROM_HERE, base::Bind(&SnapshotController::MaybeStartSnapshotThenStop,
-                            weak_ptr_factory_.GetWeakPtr()),
-      base::TimeDelta::FromMilliseconds(
-          delay_after_document_on_load_completed_ms_));
-}
-
-void SnapshotController::MaybeStartSnapshot() {
-  if (state_ != State::READY)
-    return;
-  state_ = State::SNAPSHOT_PENDING;
-  client_->StartSnapshot();
-}
-
-void SnapshotController::MaybeStartSnapshotThenStop() {
-  MaybeStartSnapshot();
-  Stop();
-}
-
-size_t SnapshotController::GetDelayAfterDocumentAvailableForTest() {
-  return delay_after_document_available_ms_;
-}
-
-size_t SnapshotController::GetDelayAfterDocumentOnLoadCompletedForTest() {
-  return delay_after_document_on_load_completed_ms_;
-}
-
-
-}  // namespace offline_pages