[chrome.displaySource][WiFi Display] Media pipeline infrastructure

extensions/renderer/api/display_source/wifi_display/wifi_display_video_encoder.cc

+// Copyright 2016 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 "extensions/renderer/api/display_source/wifi_display/wifi_display_video_encoder.h"
+
+#include "media/base/bind_to_current_loop.h"
+
+namespace extensions {
+
+using InitParameters = WiFiDisplayVideoEncoder::InitParameters;
+using VideoEncoderCallback = WiFiDisplayVideoEncoder::VideoEncoderCallback;
+
+WiFiDisplayVideoEncoder::InitParameters::InitParameters() = default;
+WiFiDisplayVideoEncoder::InitParameters::~InitParameters() = default;
+
+WiFiDisplayVideoEncoder::WiFiDisplayVideoEncoder() = default;
+WiFiDisplayVideoEncoder::~WiFiDisplayVideoEncoder() = default;
+
+void WiFiDisplayVideoEncoder::SetCallbacks(
+    const EncodedFrameCallback& encoded_callback,
+    const base::Closure& error_callback) {
+  encoded_callback_ = media::BindToCurrentLoop(encoded_callback);
+  error_callback_ = media::BindToCurrentLoop(error_callback);
+}
+
+void WiFiDisplayVideoEncoder::Create(
+    const InitParameters& params,
+    const VideoEncoderCallback& encoder_callback) {
+  NOTIMPLEMENTED();
+  encoder_callback.Run(nullptr);
+}
+
+}  // namespace extensions
+
+
+