Revert of Refactor video capturing code in the render process

content/common/media/video_capture.h

Index: content/common/media/video_capture.h
diff --git a/content/common/media/video_capture.h b/content/common/media/video_capture.h
index bf43ebbcda8ed39ff74a3239a983cc81e65f74b6..5c6384e19d0873ce3eadf87f003437529a7fb221 100644
--- a/content/common/media/video_capture.h
+++ b/content/common/media/video_capture.h
@@ -6,10 +6,6 @@
 
 #ifndef CONTENT_COMMON_MEDIA_VIDEO_CAPTURE_H_
 #define CONTENT_COMMON_MEDIA_VIDEO_CAPTURE_H_
-
-#include "base/time/time.h"
-#include "media/base/video_frame.h"
-#include "media/video/capture/video_capture_types.h"
 
 namespace content {
 
@@ -28,15 +24,6 @@
   VIDEO_CAPTURE_STATE_LAST = VIDEO_CAPTURE_STATE_ENDED
 };
 
-typedef base::Callback<void(VideoCaptureState)>
-    VideoCaptureStateUpdateCB;
-typedef base::Callback<void(const media::VideoCaptureFormats&)>
-    VideoCaptureDeviceFormatsCB;
-typedef base::Callback<
-  void(const scoped_refptr<media::VideoFrame>&,
-       const media::VideoCaptureFormat&)>
-    VideoCaptureDeliverFrameCB;
-
 }  // namespace content
 
 #endif  // CONTENT_COMMON_MEDIA_VIDEO_CAPTURE_H_