Add a ChromeOS implementation of VideoCaptureDevice

media/video/capture/linux/video_capture_device_linux.h

Index: media/video/capture/linux/video_capture_device_linux.h
diff --git a/media/video/capture/linux/video_capture_device_linux.h b/media/video/capture/linux/video_capture_device_linux.h
index 6a8dcee126163e987cdbd1eb8961b3b05da2b9c2..3b4f6eaadb0f7a80bdb45386b63a8a8d252c7f61 100644
--- a/media/video/capture/linux/video_capture_device_linux.h
+++ b/media/video/capture/linux/video_capture_device_linux.h
@@ -17,10 +17,13 @@
 #include "base/threading/thread.h"
 #include "media/video/capture/video_capture_device.h"
 #include "media/video/capture/video_capture_types.h"
+#include "ui/gfx/display.h"
+#include "ui/gfx/display_observer.h"
 
 namespace media {
 
-class VideoCaptureDeviceLinux : public VideoCaptureDevice {
+class VideoCaptureDeviceLinux : public gfx::DisplayObserver,
+                                public VideoCaptureDevice {
  public:
   explicit VideoCaptureDeviceLinux(const Name& device_name);
   virtual ~VideoCaptureDeviceLinux();
@@ -46,6 +49,14 @@ class VideoCaptureDeviceLinux : public VideoCaptureDevice {
     size_t length;
   };
 
+  // gfx::DisplayObserver:
+  virtual void OnDisplayBoundsChanged(const gfx::Display& display) OVERRIDE;
+  virtual void OnDisplayAdded(const gfx::Display& new_display) OVERRIDE;
+  virtual void OnDisplayRemoved(const gfx::Display& old_display) OVERRIDE;
+
+  // Once v4l2_thread_ is started, only called on that thread.

[mcasas, 2014/05/09 10:32:16]

|v4l2_thread_|

+  void SetDisplayRotation(const gfx::Display& display);
+
   // Called on the v4l2_thread_.
   void OnAllocateAndStart(int width,
                           int height,
@@ -67,6 +78,7 @@ class VideoCaptureDeviceLinux : public VideoCaptureDevice {
   int buffer_pool_size_;  // Number of allocated buffers.
   int timeout_count_;
   VideoCaptureFormat capture_format_;
+  gfx::Display::Rotation display_rotation_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceLinux);
 };