Use MediaCodec.setOutputSurface() for fullscreen transitions on M.

media/gpu/android_video_decode_accelerator.cc

Index: media/gpu/android_video_decode_accelerator.cc
diff --git a/media/gpu/android_video_decode_accelerator.cc b/media/gpu/android_video_decode_accelerator.cc
index ccc9f0b90a657923fe19d20cb65b51a1f26af782..d748ec183c9a08465bacf5c23d14898e4986081f 100644
--- a/media/gpu/android_video_decode_accelerator.cc
+++ b/media/gpu/android_video_decode_accelerator.cc
@@ -1240,6 +1240,16 @@ void AndroidVideoDecodeAccelerator::Reset() {
   }
 }
 
+void AndroidVideoDecodeAccelerator::SetSurface(int surface_id) {
+  config_.surface_id = surface_id;
+  codec_config_->surface_ = picture_buffer_manager_.SetSurface(surface_id);
+  if (media_codec_)
+    media_codec_->SetSurface(codec_config_->surface_.j_surface().obj());
+
+  // TODO(dalecurtis): What to do about AllocateSurface()?

[liberato (no reviews please), 2016/10/29 18:57:20]

since we didn't restart, i think that there should never be a waiter.  i'll
think about it more.

however, if we make SetSurface a normal part of initialization, then it's not an
edge case anyway.

+  // TODO(dalecurtis): What to do about inflight configurations?
+}
+
 void AndroidVideoDecodeAccelerator::Destroy() {
   DVLOG(1) << __FUNCTION__;
   DCHECK(thread_checker_.CalledOnValidThread());