Allow to use {FFmpeg/Vpx}VideoDecoder from a UtilityProcess

media/base/video_frame_provider.cc

Index: media/base/video_frame_provider.cc
diff --git a/media/base/video_frame_provider.cc b/media/base/video_frame_provider.cc
new file mode 100644
index 0000000000000000000000000000000000000000..b5b8b9be7280a431e7ecf809cfcc5e891dbce709
--- /dev/null
+++ b/media/base/video_frame_provider.cc
@@ -0,0 +1,13 @@
+// Copyright 2017 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.
+
+#include "media/base/video_frame_provider.h"
+
+namespace media {
+
+VideoFrameProvider::VideoFrameProvider() {}
+
+VideoFrameProvider::~VideoFrameProvider() {}
+
+}  // namespace media