Tiny little refactoring of DesktopEnvironment.

remoting/host/desktop_environment_fake.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 "remoting/host/desktop_environment_fake.h"
+
+#include "base/single_thread_task_runner.h"
+#include "remoting/capturer/video_frame_capturer_fake.h"
+#include "remoting/codec/audio_encoder.h"
+#include "remoting/codec/video_encoder.h"
+#include "remoting/host/video_scheduler.h"
+
+namespace remoting {
+
+DesktopEnvironmentFake::DesktopEnvironmentFake(
+    scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner)
+    : caller_task_runner_(caller_task_runner) {
+}
+
+DesktopEnvironmentFake::~DesktopEnvironmentFake() {
+  // Stop the video scheduler and clear references to the client's stubs.
+  if (video_scheduler_.get()) {
+    video_scheduler_->Stop();
+    video_scheduler_ = NULL;
+  }
+}
+
+void DesktopEnvironmentFake::InjectClipboardEvent(
+    const protocol::ClipboardEvent& event) {
+}
+
+void DesktopEnvironmentFake::InjectKeyEvent(const protocol::KeyEvent& event) {
+}
+
+void DesktopEnvironmentFake::InjectMouseEvent(
+    const protocol::MouseEvent& event) {
+}
+
+void DesktopEnvironmentFake::StartAudio(
+    scoped_refptr<base::SingleThreadTaskRunner> audio_task_runner,
+    scoped_ptr<AudioEncoder> audio_encoder,
+    protocol::AudioStub* audio_stub) {
+}
+
+void DesktopEnvironmentFake::PauseAudio(bool pause) {
+}
+
+void DesktopEnvironmentFake::StartInput(
+    scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
+    scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
+    protocol::ClipboardStub* clipboard_stub) {
+}
+
+void DesktopEnvironmentFake::StartVideo(
+    scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner,
+    scoped_refptr<base::SingleThreadTaskRunner> encode_task_runner,
+    scoped_ptr<VideoEncoder> video_encoder,
+    protocol::CursorShapeStub* cursor_shape_stub,
+    protocol::VideoStub* video_stub) {
+  DCHECK(!video_scheduler_.get());
+
+  // Create a fake video capturer that generates artificial image for testing
+  // purpose.
+  scoped_ptr<VideoFrameCapturer> video_capturer(new VideoFrameCapturerFake());
+
+  // Create and start video scheduler. The |cursor_shape_stub| and |video_stub|
+  // references are cleared by ~LocalDesktopEnvironment().
+  video_scheduler_ = VideoScheduler::Create(capture_task_runner,
+                                            encode_task_runner,
+                                            caller_task_runner_,
+                                            video_capturer.Pass(),
+                                            video_encoder.Pass(),
+                                            cursor_shape_stub,
+                                            video_stub);
+}
+
+SkISize DesktopEnvironmentFake::GetScreenSize() const {
+  return SkISize::Make(0, 0);
+}
+
+void DesktopEnvironmentFake::PauseVideo(bool pause) {
+}
+
+void DesktopEnvironmentFake::UpdateSequenceNumber(int64 sequence_number) {
+}
+
+}  // namespace remoting