Delete unused file screencastid.h.

webrtc/media/base/videocapturerfactory.h

Index: webrtc/media/base/videocapturerfactory.h
diff --git a/webrtc/media/base/videocapturerfactory.h b/webrtc/media/base/videocapturerfactory.h
index 86f70421f30442c4e109fee107a9e6e4eca93bb1..012c4a469bde3f0767daa6b7628c81b5c81efb6a 100644
--- a/webrtc/media/base/videocapturerfactory.h
+++ b/webrtc/media/base/videocapturerfactory.h
@@ -12,7 +12,6 @@
 #define WEBRTC_MEDIA_BASE_VIDEOCAPTURERFACTORY_H_
 
 #include "webrtc/media/base/device.h"
-#include "webrtc/media/base/screencastid.h"
 
 namespace cricket {
 
@@ -26,14 +25,6 @@ class VideoDeviceCapturerFactory {
   virtual VideoCapturer* Create(const Device& device) = 0;
 };
 
-class ScreenCapturerFactory {
- public:
-  ScreenCapturerFactory() {}
-  virtual ~ScreenCapturerFactory() {}
-
-  virtual VideoCapturer* Create(const ScreencastId& screenid) = 0;
-};
-
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_VIDEOCAPTURERFACTORY_H_