ScreenCapture for Android phase1, part I

content/browser/media/capture/screen_capture_device_android.h

+// 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.
+
+#ifndef CONTENT_BROWSER_MEDIA_CAPTURE_SCREEN_CAPTURE_DEVICE_ANDROID_H_
+#define CONTENT_BROWSER_MEDIA_CAPTURE_SCREEN_CAPTURE_DEVICE_ANDROID_H_
+
+#include <memory>
+
+#include "content/public/browser/power_save_blocker.h"
+#include "media/capture/content/screen_capture_device_core.h"
+#include "media/capture/video/video_capture_device.h"
+
+namespace content {
+
+// ScreenCaptureDeviceAndroid is a forwarder to media::ScreenCaptureDeviceCore
+// while keeping the Power Saving from kicking in between AllocateAndStart() and
+// StopAndDeAllocate().
+class ScreenCaptureDeviceAndroid : public media::VideoCaptureDevice {
+ public:
+  ScreenCaptureDeviceAndroid();
+  ~ScreenCaptureDeviceAndroid() override;
+
+  static std::unique_ptr<media::VideoCaptureDevice> Create();
+
+  // VideoCaptureDevice implementation.
+  void AllocateAndStart(const media::VideoCaptureParams& params,
+                        std::unique_ptr<Client> client) override;
+  void StopAndDeAllocate() override;
+  void RequestRefreshFrame() override;
+
+ private:
+  const std::unique_ptr<media::ScreenCaptureDeviceCore> core_;
+
+  std::unique_ptr<PowerSaveBlocker> power_save_blocker_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScreenCaptureDeviceAndroid);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_MEDIA_CAPTURE_SCREEN_CAPTURE_DEVICE_ANDROID_H_