Disable NV12 texture sharing with VP9 hardware video decoding.

media/gpu/dxva_video_decode_accelerator_win.cc

Index: media/gpu/dxva_video_decode_accelerator_win.cc
diff --git a/media/gpu/dxva_video_decode_accelerator_win.cc b/media/gpu/dxva_video_decode_accelerator_win.cc
index 280f681b827c1918a18ceb80ef8963c49c09fff1..c5ec2b7d164c59925c761ccc2a45acaf117980fb 100644
--- a/media/gpu/dxva_video_decode_accelerator_win.cc
+++ b/media/gpu/dxva_video_decode_accelerator_win.cc
@@ -1413,6 +1413,12 @@ bool DXVAVideoDecodeAccelerator::CheckDecoderDxvaSupport() {
     copy_nv12_textures_ = false;
   }
 
+  // The MS VP9 MFT doesn't pass through the bind flags we specify, so
+  // textures aren't created with D3D11_BIND_SHADER_RESOURCE and can't be used
+  // from ANGLE.
+  if (using_ms_vp9_mft_)
+    share_nv12_textures_ = false;
+
   return true;
 }