media: Add GpuMojoMediaClient.

media/mojo/services/gpu_mojo_media_client.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 "media/mojo/services/gpu_mojo_media_client.h"
+
+#include "media/base/audio_decoder.h"
+#include "media/base/cdm_factory.h"
+#include "media/base/video_decoder.h"
+
+#if defined(OS_ANDROID)
+#include "base/memory/ptr_util.h"
+#include "media/base/android/android_cdm_factory.h"
+#include "media/filters/android/media_codec_audio_decoder.h"
+#include "media/mojo/interfaces/provision_fetcher.mojom.h"
+#include "media/mojo/services/mojo_provision_fetcher.h"
+#include "services/service_manager/public/cpp/connect.h"
+#endif  // defined(OS_ANDROID)
+
+namespace media {
+
+namespace {
+
+#if defined(OS_ANDROID)
+std::unique_ptr<ProvisionFetcher> CreateProvisionFetcher(
+    service_manager::mojom::InterfaceProvider* interface_provider) {
+  mojom::ProvisionFetcherPtr provision_fetcher_ptr;
+  service_manager::GetInterface(interface_provider, &provision_fetcher_ptr);
+  return base::MakeUnique<MojoProvisionFetcher>(
+      std::move(provision_fetcher_ptr));
+}
+#endif  // defined(OS_ANDROID)

[xhwang, 2016/11/23 06:58:03]

It would be nice to avoid the duplication between this file and the
AndroidMojoMediaClient. But I don't have any concrete idea ...

[sandersd (OOO until July 31), 2016/11/23 21:21:02]

It should be possible to just delete it soon. The remaining construction paths
are just:
  - UtilityServiceFactory (Presumably not on Android?)
  - ChromeContentBrowserClient (browser process)

[xhwang, 2016/11/24 07:02:10]

I am a bit lost. Do you mean the "construction paths" of AndroidMojoMediaClient?
Or something else?

[sandersd (OOO until July 31), 2016/11/28 00:56:15]

Yes, that's what I mean. The paths that construct an AndroidMojoMediaClient are
limited, and I expect we can eliminate them.

ChromeContentBrowserClient I don't know much about, so I could be wrong that it
will be easy to eliminate that path.

+
+}  // namespace
+
+GpuMojoMediaClient::GpuMojoMediaClient(
+    scoped_refptr<base::SingleThreadTaskRunner> media_task_runner,
+    MediaGpuChannelManager* media_gpu_channel_manager)
+    : media_task_runner_(media_task_runner),
+      media_gpu_channel_manager_(media_gpu_channel_manager) {}
+
+GpuMojoMediaClient::~GpuMojoMediaClient() {}
+
+std::unique_ptr<AudioDecoder> GpuMojoMediaClient::CreateAudioDecoder(
+    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
+#if defined(OS_ANDROID)
+  return base::MakeUnique<MediaCodecAudioDecoder>(task_runner);
+#else
+  return nullptr;
+#endif  // defined(OS_ANDROID)
+}
+
+std::unique_ptr<VideoDecoder> GpuMojoMediaClient::CreateVideoDecoder(
+    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
+  (void)media_gpu_channel_manager_;

[sandersd (OOO until July 31), 2016/11/22 23:07:59]

This just avoids the compiler warning for unused private member; once it's
passed to a VideoDecoder this shouldn't be needed anymore.

+
+  // TODO(sandersd): Factory for VideoDecoders.
+  return nullptr;
+}
+
+std::unique_ptr<CdmFactory> GpuMojoMediaClient::CreateCdmFactory(
+    service_manager::mojom::InterfaceProvider* interface_provider) {
+#if defined(OS_ANDROID)
+  return base::MakeUnique<AndroidCdmFactory>(
+      base::Bind(&CreateProvisionFetcher, interface_provider));
+#else
+  return nullptr;
+#endif  // defined(OS_ANDROID)
+}
+
+}  // namespace media