Add a ChromeOS implementation of VideoCaptureDevice

content/browser/renderer_host/media/media_stream_manager.h

Index: content/browser/renderer_host/media/media_stream_manager.h
diff --git a/content/browser/renderer_host/media/media_stream_manager.h b/content/browser/renderer_host/media/media_stream_manager.h
index 2d0a56f192fa656e46d739d8ba02b981ad3b45c5..a21a4a8608224f72190f1dfa33856b58590d958f 100644
--- a/content/browser/renderer_host/media/media_stream_manager.h
+++ b/content/browser/renderer_host/media/media_stream_manager.h
@@ -41,6 +41,8 @@
 #include "content/common/media/media_stream_options.h"
 #include "content/public/browser/media_request_state.h"
 #include "content/public/browser/resource_context.h"
+#include "ui/gfx/display.h"
+#include "ui/gfx/display_observer.h"
 
 namespace media {
 class AudioManager;
@@ -62,7 +64,8 @@ class CONTENT_EXPORT MediaStreamManager
     : public MediaStreamProviderListener,
       public base::MessageLoop::DestructionObserver,
       public base::PowerObserver,
-      public base::SystemMonitor::DevicesChangedObserver {
+      public base::SystemMonitor::DevicesChangedObserver,
+      public gfx::DisplayObserver {
  public:
   // Callback to deliver the result of a media request.
   typedef base::Callback<void(const MediaStreamDevices& devices,
@@ -351,6 +354,13 @@ class CONTENT_EXPORT MediaStreamManager
                                StreamDeviceInfoArray devices,
                                gfx::NativeViewId window_id);
 
+  // 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;
+
+  void SetDisplayRotationOnIOThread(gfx::Display::Rotation rotation);
+
   // Task runner shared by VideoCaptureManager and AudioInputDeviceManager.
   // Note: Enumeration tasks may take seconds to complete so must never be run
   // on any of the BrowserThreads (UI, IO, etc).  See http://crbug.com/256945.
@@ -379,6 +389,7 @@ class CONTENT_EXPORT MediaStreamManager
   // managers on the right thread.
   base::MessageLoop* io_loop_;
 
+  bool observing_screen_;
   bool use_fake_ui_;
   scoped_ptr<FakeMediaStreamUIProxy> fake_ui_;