[dxvavda] Save information about outstanding buffers in hang minidumps.

media/gpu/dxva_video_decode_accelerator_win.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_GPU_DXVA_VIDEO_DECODE_ACCELERATOR_WIN_H_
 #define MEDIA_GPU_DXVA_VIDEO_DECODE_ACCELERATOR_WIN_H_
 
 #include <d3d11.h>
 #include <d3d9.h>
 #include <initguid.h>
@@ skipping 445 matching lines @@
 
   // Counter which holds the number of input packets before a successful
   // decode.
   int inputs_before_decode_;
 
   // Set to true when the drain message is sent to the decoder during a flush
   // operation. Used to ensure the message is only sent once after
   // |pending_input_buffers_| is drained. Protected by |decoder_lock_|.
   bool sent_drain_message_;
 
+  // This is the array size of the D3D11 texture that's output to by the
+  // decoder. It's only used for debugging.
+  uint32_t output_array_size_ = 0;
+
   // List of input samples waiting to be processed.
   typedef std::list<base::win::ScopedComPtr<IMFSample>> PendingInputs;
   PendingInputs pending_input_buffers_;
 
   // Callback to get current GLContext.
   GetGLContextCallback get_gl_context_cb_;
   // Callback to set the correct gl context.
   MakeGLContextCurrentCallback make_context_current_cb_;
   BindGLImageCallback bind_image_cb_;
 
@@ skipping 77 matching lines @@
 
   // Function pointer for the MFCreateDXGIDeviceManager API.
   static CreateDXGIDeviceManager create_dxgi_device_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(DXVAVideoDecodeAccelerator);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_GPU_DXVA_VIDEO_DECODE_ACCELERATOR_WIN_H_