Refactor: Extract gpu_video_encode_accelerator_factory.

media/gpu/gpu_video_encode_accelerator_factory.h

+// Copyright 2017 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.
+
+#ifndef MEDIA_GPU_GPU_VIDEO_ENCODE_ACCELERATOR_FACTORY_H_
+#define MEDIA_GPU_GPU_VIDEO_ENCODE_ACCELERATOR_FACTORY_H_
+
+#include <memory>
+
+#include "gpu/command_buffer/service/gpu_preferences.h"
+#include "media/gpu/media_gpu_export.h"
+#include "media/video/video_encode_accelerator.h"
+
+namespace media {
+
+class MEDIA_GPU_EXPORT GpuVideoEncodeAcceleratorFactory {
+ public:
+  // Creates and Initializes an VideoEncodeAccelerator. Returns nullptr
+  // if there is no implementation available on the platform or calling
+  // VideoEncodeAccelerator::Initialize() returns false.
+  static std::unique_ptr<VideoEncodeAccelerator> CreateVEA(
+      VideoPixelFormat input_format,
+      const gfx::Size& input_visible_size,
+      VideoCodecProfile output_profile,
+      uint32_t initial_bitrate,
+      VideoEncodeAccelerator::Client* client,
+      const gpu::GpuPreferences& gpu_perferences);
+
+  // Gets the supported codec profiles for video encoding on the platform.
+  static VideoEncodeAccelerator::SupportedProfiles GetSupportedProfiles(
+      const gpu::GpuPreferences& gpu_preferences);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(GpuVideoEncodeAcceleratorFactory);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_GPU_GPU_VIDEO_ENCODE_ACCELERATOR_FACTORY_H_