Move webkit/{browser,common}/dom_storage into content/

webkit/browser/dom_storage/dom_storage_task_runner.cc

-// Copyright (c) 2012 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 "webkit/browser/dom_storage/dom_storage_task_runner.h"
-
-#include "base/bind.h"
-#include "base/bind_helpers.h"
-#include "base/message_loop/message_loop_proxy.h"
-#include "base/tracked_objects.h"
-
-namespace dom_storage {
-
-// DomStorageTaskRunner
-
-bool DomStorageTaskRunner::RunsTasksOnCurrentThread() const {
-  return IsRunningOnSequence(PRIMARY_SEQUENCE);
-}
-
-// DomStorageWorkerPoolTaskRunner
-
-DomStorageWorkerPoolTaskRunner::DomStorageWorkerPoolTaskRunner(
-    base::SequencedWorkerPool* sequenced_worker_pool,
-    base::SequencedWorkerPool::SequenceToken primary_sequence_token,
-    base::SequencedWorkerPool::SequenceToken commit_sequence_token,
-    base::MessageLoopProxy* delayed_task_loop)
-    : message_loop_(delayed_task_loop),
-      sequenced_worker_pool_(sequenced_worker_pool),
-      primary_sequence_token_(primary_sequence_token),
-      commit_sequence_token_(commit_sequence_token) {
-}
-
-DomStorageWorkerPoolTaskRunner::~DomStorageWorkerPoolTaskRunner() {
-}
-
-bool DomStorageWorkerPoolTaskRunner::PostDelayedTask(
-    const tracked_objects::Location& from_here,
-    const base::Closure& task,
-    base::TimeDelta delay) {
-  // Note base::TaskRunner implements PostTask in terms of PostDelayedTask
-  // with a delay of zero, we detect that usage and avoid the unecessary
-  // trip thru the message loop.
-  if (delay == base::TimeDelta()) {
-    return sequenced_worker_pool_->PostSequencedWorkerTaskWithShutdownBehavior(
-        primary_sequence_token_, from_here, task,
-        base::SequencedWorkerPool::BLOCK_SHUTDOWN);
-  }
-  // Post a task to call this->PostTask() after the delay.
-  return message_loop_->PostDelayedTask(
-      FROM_HERE,
-      base::Bind(base::IgnoreResult(&DomStorageWorkerPoolTaskRunner::PostTask),
-                 this, from_here, task),
-      delay);
-}
-
-bool DomStorageWorkerPoolTaskRunner::PostShutdownBlockingTask(
-    const tracked_objects::Location& from_here,
-    SequenceID sequence_id,
-    const base::Closure& task) {
-  return sequenced_worker_pool_->PostSequencedWorkerTaskWithShutdownBehavior(
-      IDtoToken(sequence_id), from_here, task,
-      base::SequencedWorkerPool::BLOCK_SHUTDOWN);
-}
-
-bool DomStorageWorkerPoolTaskRunner::IsRunningOnSequence(
-    SequenceID sequence_id) const {
-  return sequenced_worker_pool_->IsRunningSequenceOnCurrentThread(
-      IDtoToken(sequence_id));
-}
-
-base::SequencedWorkerPool::SequenceToken
-DomStorageWorkerPoolTaskRunner::IDtoToken(SequenceID id) const {
-  if (id == PRIMARY_SEQUENCE)
-    return primary_sequence_token_;
-  DCHECK_EQ(COMMIT_SEQUENCE, id);
-  return commit_sequence_token_;
-}
-
-// MockDomStorageTaskRunner
-
-MockDomStorageTaskRunner::MockDomStorageTaskRunner(
-    base::MessageLoopProxy* message_loop)
-    : message_loop_(message_loop) {
-}
-
-MockDomStorageTaskRunner::~MockDomStorageTaskRunner() {
-}
-
-bool MockDomStorageTaskRunner::PostDelayedTask(
-    const tracked_objects::Location& from_here,
-    const base::Closure& task,
-    base::TimeDelta delay) {
-  return message_loop_->PostTask(from_here, task);
-}
-
-bool MockDomStorageTaskRunner::PostShutdownBlockingTask(
-    const tracked_objects::Location& from_here,
-    SequenceID sequence_id,
-    const base::Closure& task) {
-  return message_loop_->PostTask(from_here, task);
-}
-
-bool MockDomStorageTaskRunner::IsRunningOnSequence(SequenceID) const {
-  return message_loop_->RunsTasksOnCurrentThread();
-}
-
-}  // namespace dom_storage