Revert of content gpu refactor: get rid of gpu related content switches.

content/common/gpu/media/gpu_video_decode_accelerator.h

 // Copyright (c) 2012 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 CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_
 #define CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/shared_memory.h"
 #include "base/synchronization/waitable_event.h"
 #include "content/common/gpu/gpu_command_buffer_stub.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "gpu/config/gpu_info.h"
 #include "ipc/ipc_listener.h"
 #include "ipc/ipc_sender.h"
 #include "media/video/video_decode_accelerator.h"
 #include "ui/gfx/geometry/size.h"
 
-namespace gpu {
-struct GpuPreferences;
-}  // namespace gpu
-
 namespace content {
 
 class GpuVideoDecodeAccelerator
     : public IPC::Listener,
       public IPC::Sender,
       public media::VideoDecodeAccelerator::Client,
       public GpuCommandBufferStub::DestructionObserver {
  public:
   // Each of the arguments to the constructor must outlive this object.
   // |stub->decoder()| will be made current around any operation that touches
   // the underlying VDA so that it can make GL calls safely.
   GpuVideoDecodeAccelerator(
       int32_t host_route_id,
       GpuCommandBufferStub* stub,
       const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
 
   // Static query for the capabilities, which includes the supported profiles.
   // This query calls the appropriate platform-specific version.  The returned
   // capabilities will not contain duplicate supported profile entries.
-  static gpu::VideoDecodeAcceleratorCapabilities GetCapabilities(
-      const gpu::GpuPreferences& gpu_preferences);
+  static gpu::VideoDecodeAcceleratorCapabilities GetCapabilities();
 
   // IPC::Listener implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // media::VideoDecodeAccelerator::Client implementation.
   void NotifyCdmAttached(bool success) override;
   void ProvidePictureBuffers(uint32_t requested_num_of_buffers,
                              const gfx::Size& dimensions,
                              uint32_t texture_target) override;
   void DismissPictureBuffer(int32_t picture_buffer_id) override;
   void PictureReady(const media::Picture& picture) override;
   void NotifyEndOfBitstreamBuffer(int32_t bitstream_buffer_id) override;
   void NotifyFlushDone() override;
   void NotifyResetDone() override;
   void NotifyError(media::VideoDecodeAccelerator::Error error) override;
 
   // GpuCommandBufferStub::DestructionObserver implementation.
   void OnWillDestroyStub() override;
 
   // Function to delegate sending to actual sender.
   bool Send(IPC::Message* message) override;
 
   // Initialize VDAs from the set of VDAs supported for current platform until
   // one of them succeeds for given |config|. Send the |init_done_msg| when
   // done. filter_ is passed to GpuCommandBufferStub channel only if the chosen
   // VDA can decode on IO thread.
   bool Initialize(const media::VideoDecodeAccelerator::Config& config);
 
  private:
-  typedef scoped_ptr<media::VideoDecodeAccelerator> (
+  typedef scoped_ptr<media::VideoDecodeAccelerator>(
       GpuVideoDecodeAccelerator::*CreateVDAFp)();
 
   class MessageFilter;
 
-#if defined(OS_WIN)
   scoped_ptr<media::VideoDecodeAccelerator> CreateDXVAVDA();
-#endif
-#if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
   scoped_ptr<media::VideoDecodeAccelerator> CreateV4L2VDA();
   scoped_ptr<media::VideoDecodeAccelerator> CreateV4L2SliceVDA();
-#endif
-#if defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)
   scoped_ptr<media::VideoDecodeAccelerator> CreateVaapiVDA();
-#endif
-#if defined(OS_MACOSX)
   scoped_ptr<media::VideoDecodeAccelerator> CreateVTVDA();
-#endif
-#if !defined(OS_CHROMEOS) && defined(USE_OZONE)
   scoped_ptr<media::VideoDecodeAccelerator> CreateOzoneVDA();
-#endif
-#if defined(OS_ANDROID)
   scoped_ptr<media::VideoDecodeAccelerator> CreateAndroidVDA();
-#endif
 
   // We only allow self-delete, from OnWillDestroyStub(), after cleanup there.
   ~GpuVideoDecodeAccelerator() override;
 
   // Handlers for IPC messages.
   void OnSetCdm(int cdm_id);
   void OnDecode(const media::BitstreamBuffer& bitstream_buffer);
   void OnAssignPictureBuffers(const std::vector<int32_t>& buffer_ids,
                               const std::vector<uint32_t>& texture_ids);
   void OnReusePictureBuffer(int32_t picture_buffer_id);
   void OnFlush();
   void OnReset();
   void OnDestroy();
 
   // Called on IO thread when |filter_| has been removed.
   void OnFilterRemoved();
 
   // Sets the texture to cleared.
   void SetTextureCleared(const media::Picture& picture);
 
-#if (defined(OS_CHROMEOS) && defined(ARCH_CPU_X86_FAMILY)) || defined(OS_MACOSX)
   // Helper to bind |image| to the texture specified by |client_texture_id|.
   void BindImage(uint32_t client_texture_id,
                  uint32_t texture_target,
                  scoped_refptr<gl::GLImage> image);
-#endif
 
   // Helper function to call NotifyError in the |child_task_runner_| thread.
   void CallOrPostNotifyError(media::VideoDecodeAccelerator::Error error);
 
   // Route ID to communicate with the host.
   const int32_t host_route_id_;
 
   // Unowned pointer to the underlying GpuCommandBufferStub.  |this| is
   // registered as a DestuctionObserver of |stub_| and will self-delete when
   // |stub_| is destroyed.
@@ skipping 35 matching lines @@
 
   // A map from picture buffer ID to TextureRef that have not been cleared.
   std::map<int32_t, scoped_refptr<gpu::gles2::TextureRef>> uncleared_textures_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(GpuVideoDecodeAccelerator);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_H_