Fix MP4 mid-stream resolution changes for MSE on android spitzer.

media/filters/gpu_video_decoder.cc

Index: media/filters/gpu_video_decoder.cc
diff --git a/media/filters/gpu_video_decoder.cc b/media/filters/gpu_video_decoder.cc
index 8b9f0299052fa059181aa4c4271e2f53d3e885b9..747d352816d3df0ea8e1dc9826e154cc0abfbbf9 100644
--- a/media/filters/gpu_video_decoder.cc
+++ b/media/filters/gpu_video_decoder.cc
@@ -177,6 +177,8 @@ void GpuVideoDecoder::Initialize(const VideoDecoderConfig& config,
   output_cb_ = BindToCurrentLoop(output_cb);
 
   if (previously_initialized) {
+    DVLOG(3) << __FUNCTION__
+             << " Expecting initialized VDA to detect in-stream config change.";
     // Reinitialization with a different config (but same codec and profile).
     // VDA should handle it by detecting this in-stream by itself,
     // no need to notify it.
@@ -290,6 +292,7 @@ void GpuVideoDecoder::Decode(const scoped_refptr<DecoderBuffer>& buffer,
   DCHECK_EQ(state_, kNormal);
 
   if (buffer->end_of_stream()) {
+    DVLOG(3) << __FUNCTION__ << " Initiating Flush for EOS.";
     state_ = kDrainingDecoder;
     eos_decode_cb_ = bound_decode_cb;
     vda_->Flush();