Move frame_callback.h to common_video/include.

webrtc/common_video/include/frame_callback.h

Index: webrtc/common_video/include/frame_callback.h
diff --git a/webrtc/frame_callback.h b/webrtc/common_video/include/frame_callback.h
similarity index 89%
rename from webrtc/frame_callback.h
rename to webrtc/common_video/include/frame_callback.h
index 2bae25036d9aaa5da3d4845b9fd33103cab3ef15..81737c6b962e4dca60e56796a62d2f6955e519d2 100644
--- a/webrtc/frame_callback.h
+++ b/webrtc/common_video/include/frame_callback.h
@@ -8,8 +8,8 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_FRAME_CALLBACK_H_
-#define WEBRTC_FRAME_CALLBACK_H_
+#ifndef WEBRTC_COMMON_VIDEO_INCLUDE_FRAME_CALLBACK_H_
+#define WEBRTC_COMMON_VIDEO_INCLUDE_FRAME_CALLBACK_H_
 
 #include <stddef.h>
 #include <stdint.h>
@@ -52,4 +52,4 @@ class EncodedFrameObserver {
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_FRAME_CALLBACK_H_
+#endif  // WEBRTC_COMMON_VIDEO_INCLUDE_FRAME_CALLBACK_H_