Load CMA backend from shared library

chromecast/media/cma/backend/media_pipeline_device_params.cc

Index: chromecast/media/cma/backend/media_pipeline_device_params.cc
diff --git a/chromecast/media/cma/backend/media_pipeline_device_params.cc b/chromecast/media/cma/backend/media_pipeline_device_params.cc
deleted file mode 100644
index 1f4e2ebed58918e7625ccf37ef11d32147994600..0000000000000000000000000000000000000000
--- a/chromecast/media/cma/backend/media_pipeline_device_params.cc
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright 2014 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/cma/backend/media_pipeline_device_params.h"
-
-namespace chromecast {
-namespace media {
-
-MediaPipelineDeviceParams::MediaPipelineDeviceParams()
-    : sync_type(kModeSyncPts) {
-}
-
-MediaPipelineDeviceParams::~MediaPipelineDeviceParams() {
-}
-
-}  // namespace media
-}  // namespace chromecast