EDK: Add a mojo::platform::MessageLoop abstraction.

mojo/edk/base_edk/platform_message_loop_impl.cc

+// Copyright 2015 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 "mojo/edk/base_edk/platform_message_loop_impl.h"
+
+#include <utility>
+
+#include "mojo/edk/base_edk/platform_task_runner_impl.h"
+
+using mojo::platform::TaskRunner;
+using mojo::util::MakeRefCounted;
+using mojo::util::RefPtr;
+
+namespace base_edk {
+
+PlatformMessageLoopImpl::PlatformMessageLoopImpl(base::MessageLoop::Type type)
+    : base_message_loop_(type),
+      task_runner_(MakeRefCounted<PlatformTaskRunnerImpl>(
+          base_message_loop_.task_runner())) {}
+
+PlatformMessageLoopImpl::PlatformMessageLoopImpl(
+    scoped_ptr<base::MessagePump> pump)
+    : base_message_loop_(std::move(pump)),
+      task_runner_(MakeRefCounted<PlatformTaskRunnerImpl>(
+          base_message_loop_.task_runner())) {}
+
+PlatformMessageLoopImpl::~PlatformMessageLoopImpl() {}
+
+void PlatformMessageLoopImpl::Run() {
+  base_message_loop_.Run();
+}
+
+void PlatformMessageLoopImpl::RunUntilIdle() {
+  base_message_loop_.RunUntilIdle();
+}
+
+void PlatformMessageLoopImpl::QuitWhenIdle() {
+  base_message_loop_.QuitWhenIdle();
+}
+
+const RefPtr<TaskRunner>& PlatformMessageLoopImpl::GetTaskRunner() const {
+  return task_runner_;
+}
+
+bool PlatformMessageLoopImpl::IsRunningOnCurrentThread() const {
+  return base::MessageLoop::current() == &base_message_loop_ &&
+         base_message_loop_.is_running();
+}
+
+}  // namespace base_edk