[Chromecast] Add CmaMediaRendererFactory and IPC proxy components

chromecast/renderer/media/cma_media_renderer_factory.cc

+// 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/renderer/media/cma_media_renderer_factory.h"
+
+#include "base/command_line.h"
+#include "chromecast/media/cma/filters/cma_renderer.h"
+#include "chromecast/renderer/media/media_pipeline_proxy.h"
+#include "content/public/renderer/render_thread.h"
+
+namespace chromecast {
+namespace media {
+
+CmaMediaRendererFactory::CmaMediaRendererFactory(int render_frame_id)
+    : render_frame_id_(render_frame_id) {
+}
+
+CmaMediaRendererFactory::~CmaMediaRendererFactory() {
+}
+
+scoped_ptr<::media::Renderer> CmaMediaRendererFactory::CreateRenderer(
+    const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
+    ::media::AudioRendererSink* audio_renderer_sink) {
+  // TODO(erickung): Need to provide right chromecast::media::LoadType.

[gunsch, 2014/12/20 22:41:33]

Link to the crbug discussing this issue

[erickung1, 2014/12/21 11:10:47]

Done.

+  chromecast::media::LoadType cma_load_type =
+      chromecast::media::kLoadTypeMediaSource;
+  scoped_ptr<chromecast::media::MediaPipeline> cma_media_pipeline(
+      new chromecast::cma::MediaPipelineProxy(
+          render_frame_id_,
+          content::RenderThread::Get()->GetIOMessageLoopProxy(),
+          cma_load_type));
+  // TODO(gunsch): investigate calling SetCdm here if available.

[gunsch, 2014/12/20 22:41:33]

this TODO is obsolete due to xhwang@ having wired up SetCdm correctly to the
Renderer instance

[erickung1, 2014/12/21 11:10:47]

Done.

+
+  return scoped_ptr<::media::Renderer>(

[gunsch, 2014/12/20 22:41:33]

check this CL for "<::" ; it should always be "< ::" and there are a few
instances

[erickung1, 2014/12/21 11:10:46]

Done.

+      new chromecast::media::CmaRenderer(cma_media_pipeline.Pass()));
+}
+
+}  // namespace media
+}  // namespace chromecast