Add prototype D3D11VideoDecodeAccelerator.

media/gpu/gpu_video_decode_accelerator_factory.cc

Index: media/gpu/gpu_video_decode_accelerator_factory.cc
diff --git a/media/gpu/gpu_video_decode_accelerator_factory.cc b/media/gpu/gpu_video_decode_accelerator_factory.cc
index a7db56f57357108e3f4fcca4caa268a4561af744..704fde50c10e5dbef01885dae7a06a0b5d11f703 100644
--- a/media/gpu/gpu_video_decode_accelerator_factory.cc
+++ b/media/gpu/gpu_video_decode_accelerator_factory.cc
@@ -6,11 +6,13 @@
 
 #include "base/memory/ptr_util.h"
 #include "gpu/command_buffer/service/gpu_preferences.h"
+#include "media/base/media_switches.h"
 #include "media/gpu/gpu_video_accelerator_util.h"
 #include "media/gpu/media_gpu_export.h"
 
 #if defined(OS_WIN)
 #include "base/win/windows_version.h"
+#include "media/gpu/d3d11_video_decode_accelerator_win.h"
 #include "media/gpu/dxva_video_decode_accelerator_win.h"
 #elif defined(OS_MACOSX)
 #include "media/gpu/vt_video_decode_accelerator_mac.h"
@@ -125,6 +127,7 @@ GpuVideoDecodeAcceleratorFactory::CreateVDA(
                                            const gpu::GpuPreferences&) const;
   const CreateVDAFp create_vda_fps[] = {
 #if defined(OS_WIN)
+    &GpuVideoDecodeAcceleratorFactory::CreateD3D11VDA,
     &GpuVideoDecodeAcceleratorFactory::CreateDXVAVDA,
 #endif
 #if defined(OS_CHROMEOS) && defined(USE_V4L2_CODEC)
@@ -155,6 +158,21 @@ GpuVideoDecodeAcceleratorFactory::CreateVDA(
 
 #if defined(OS_WIN)
 std::unique_ptr<VideoDecodeAccelerator>
+GpuVideoDecodeAcceleratorFactory::CreateD3D11VDA(
+    const gpu::GpuDriverBugWorkarounds& workarounds,
+    const gpu::GpuPreferences& gpu_preferences) const {
+  std::unique_ptr<VideoDecodeAccelerator> decoder;
+  if (!base::FeatureList::IsEnabled(kD3D11VideoDecoding))
+    return decoder;
+  if (base::win::GetVersion() >= base::win::VERSION_WIN8) {
+    DVLOG(0) << "Initializing D3D11 HW decoder for windows.";
+    decoder.reset(new D3D11VideoDecodeAccelerator(get_gl_context_cb_,
+                                                  make_context_current_cb_));
+  }
+  return decoder;
+}
+
+std::unique_ptr<VideoDecodeAccelerator>
 GpuVideoDecodeAcceleratorFactory::CreateDXVAVDA(
     const gpu::GpuDriverBugWorkarounds& workarounds,
     const gpu::GpuPreferences& gpu_preferences) const {