Revert of Merge VideoDecodeAcceleratorImpl with VideoDecodeAccelerator

media/video/video_decode_accelerator.cc

Index: media/video/video_decode_accelerator.cc
diff --git a/media/video/video_decode_accelerator.cc b/media/video/video_decode_accelerator.cc
index a72912cf3059ac777c9314b99fc286baf8d09ad9..142dab366c344f3174896340157e6a09d58134cd 100644
--- a/media/video/video_decode_accelerator.cc
+++ b/media/video/video_decode_accelerator.cc
@@ -4,19 +4,11 @@
 
 #include "media/video/video_decode_accelerator.h"
 
-#include "base/logging.h"
-
 namespace media {
 
 VideoDecodeAccelerator::~VideoDecodeAccelerator() {}
 
-bool VideoDecodeAccelerator::CanDecodeOnIOThread() {
-  // GPU process subclasses must override this.
-  LOG(FATAL) << "This should only get called in the GPU process";
-  return false;  // not reached
 }
-
-} // namespace media
 
 namespace base {