Load CMA backend from shared library

chromecast/media/base/media_codec_support_simple.cc

Index: chromecast/media/base/media_codec_support_simple.cc
diff --git a/chromecast/media/base/media_codec_support_simple.cc b/chromecast/media/base/media_codec_support_simple.cc
deleted file mode 100644
index 24e83be69dcb8b11f5332a036bb64d92b98185ea..0000000000000000000000000000000000000000
--- a/chromecast/media/base/media_codec_support_simple.cc
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2015 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 "chromecast/media/base/media_codec_support.h"
-
-#include "base/bind.h"
-
-namespace chromecast {
-namespace media {
-
-// This is a default implementation of GetIsCodecSupportedOnChromecastCB that is
-// going to be used for brandings other than 'Chrome'. Most platforms will want
-// to use their own custom implementations of the IsCodecSupportedCB callback.
-net::IsCodecSupportedCB GetIsCodecSupportedOnChromecastCB() {
-  return base::Bind(&net::DefaultIsCodecSupported);
-}
-
-}  // namespace media
-}  // namespace chromecast
-