Add a ChromeOS implementation of VideoCaptureDevice

content/browser/renderer_host/media/video_capture_manager.h

 // 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.
 
 // VideoCaptureManager is used to open/close, start/stop, enumerate available
 // video capture devices, and manage VideoCaptureController's.
 // All functions are expected to be called from Browser::IO thread. Some helper
 // functions (*OnDeviceThread) will dispatch operations to the device thread.
 // VideoCaptureManager will open OS dependent instances of VideoCaptureDevice.
 // A device can only be opened once.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_MANAGER_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_MANAGER_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/process/process_handle.h"
 #include "content/browser/renderer_host/media/media_stream_provider.h"
 #include "content/browser/renderer_host/media/video_capture_controller_event_handler.h"
 #include "content/common/content_export.h"
 #include "content/common/media/media_stream_options.h"
 #include "media/video/capture/video_capture_device.h"
 #include "media/video/capture/video_capture_device_factory.h"
 #include "media/video/capture/video_capture_types.h"
+#include "ui/gfx/display.h"
 
 namespace content {
 class VideoCaptureController;
 class VideoCaptureControllerEventHandler;
 
 // VideoCaptureManager opens/closes and start/stops video capture devices.
 class CONTENT_EXPORT VideoCaptureManager : public MediaStreamProvider {
  public:
   // Callback used to signal the completion of a controller lookup.
   typedef base::Callback<
       void(const base::WeakPtr<VideoCaptureController>&)> DoneCB;
 
   explicit VideoCaptureManager(
       scoped_ptr<media::VideoCaptureDeviceFactory> factory);
 
+  // Set the Display rotation.
+  void SetDisplayRotation(gfx::Display::Rotation rotation);
+
   // Implements MediaStreamProvider.
   virtual void Register(MediaStreamProviderListener* listener,
                         const scoped_refptr<base::SingleThreadTaskRunner>&
                             device_task_runner) OVERRIDE;
 
   virtual void Unregister() OVERRIDE;
 
   virtual void EnumerateDevices(MediaStreamType stream_type) OVERRIDE;
 
   virtual int Open(const StreamDeviceInfo& device) OVERRIDE;
@@ skipping 122 matching lines @@
   DeviceInfo* FindDeviceInfoById(const std::string& id,
                                  DeviceInfos& device_vector);
 
   void SetDesktopCaptureWindowIdOnDeviceThread(DeviceEntry* entry,
                                                gfx::NativeViewId window_id);
 
   void SaveDesktopCaptureWindowIdOnDeviceThread(
       media::VideoCaptureSessionId session_id,
       gfx::NativeViewId window_id);
 
+  void SetDisplayRotationOnDeviceThread(gfx::Display::Rotation rotation);
+
   // The message loop of media stream device thread, where VCD's live.
   scoped_refptr<base::SingleThreadTaskRunner> device_task_runner_;
 
   // Only accessed on Browser::IO thread.
   MediaStreamProviderListener* listener_;
   media::VideoCaptureSessionId new_capture_session_id_;
 
   typedef std::map<media::VideoCaptureSessionId, MediaStreamDevice> SessionMap;
   // An entry is kept in this map for every session that has been created via
   // the Open() entry point. The keys are session_id's. This map is used to
@@ skipping 38 matching lines @@
   // from EnumerateDevices()--, and this snapshot is used to update this list in
   // OnDevicesInfoEnumerated(). GetDeviceSupportedFormats() will
   // use this list if the device is not started, otherwise it will retrieve the
   // active device capture format from the VideoCaptureController associated.
   DeviceInfos devices_info_cache_;
 
   // Accessed on the device thread only.
   std::map<media::VideoCaptureSessionId, gfx::NativeViewId>
       notification_window_ids_;
 
+  gfx::Display::Rotation display_rotation_;

[vrk (LEFT CHROMIUM), 2014/05/08 21:43:34]

Add comment saying this should be on the device thread only.

[Zachary Kuznia, 2014/05/08 21:51:22]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(VideoCaptureManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_VIDEO_CAPTURE_MANAGER_H_