Import chromium-63.0.3239.132

base/message_loop/message_loop_task_runner.cc

@@ -0,0 +1,54 @@
+// 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 "base/message_loop/message_loop_task_runner.h"
+
+#include <utility>
+
+#include "base/location.h"
+#include "base/logging.h"
+#include "base/message_loop/incoming_task_queue.h"
+
+namespace base {
+namespace internal {
+
+MessageLoopTaskRunner::MessageLoopTaskRunner(
+    scoped_refptr<IncomingTaskQueue> incoming_queue)
+    : incoming_queue_(incoming_queue), valid_thread_id_(kInvalidThreadId) {
+}
+
+void MessageLoopTaskRunner::BindToCurrentThread() {
+  AutoLock lock(valid_thread_id_lock_);
+  DCHECK_EQ(kInvalidThreadId, valid_thread_id_);
+  valid_thread_id_ = PlatformThread::CurrentId();
+}
+
+bool MessageLoopTaskRunner::PostDelayedTask(const Location& from_here,
+                                            OnceClosure task,
+                                            base::TimeDelta delay) {
+  DCHECK(!task.is_null()) << from_here.ToString();
+  return incoming_queue_->AddToIncomingQueue(from_here, std::move(task), delay,
+                                             Nestable::kNestable);
+}
+
+bool MessageLoopTaskRunner::PostNonNestableDelayedTask(
+    const Location& from_here,
+    OnceClosure task,
+    base::TimeDelta delay) {
+  DCHECK(!task.is_null()) << from_here.ToString();
+  return incoming_queue_->AddToIncomingQueue(from_here, std::move(task), delay,
+                                             Nestable::kNonNestable);
+}
+
+bool MessageLoopTaskRunner::RunsTasksInCurrentSequence() const {
+  AutoLock lock(valid_thread_id_lock_);
+  return valid_thread_id_ == PlatformThread::CurrentId();
+}
+
+MessageLoopTaskRunner::~MessageLoopTaskRunner() {
+}
+
+}  // namespace internal
+
+}  // namespace base