Add GpuMemoryBuffer support for DXGI handles.

ui/gfx/gpu_memory_buffer.cc

 // Copyright 2013 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 "ui/gfx/gpu_memory_buffer.h"
 
 #include "ui/gfx/generic_shared_memory_id.h"
 
 namespace gfx {
 
@@ skipping 13 matching lines @@
     case gfx::EMPTY_BUFFER:
       NOTREACHED();
       return source_handle;
     case gfx::SHARED_MEMORY_BUFFER: {
       gfx::GpuMemoryBufferHandle handle;
       handle.type = gfx::SHARED_MEMORY_BUFFER;
       handle.id = source_handle.id;
       handle.handle = base::SharedMemory::DuplicateHandle(source_handle.handle);
       handle.offset = source_handle.offset;
       handle.stride = source_handle.stride;
+#if defined(OS_WIN)
+      handle.array_level = source_handle.array_level;
+#endif
       return handle;
     }
     case gfx::NATIVE_PIXMAP: {
       gfx::GpuMemoryBufferHandle handle;
       handle.type = gfx::NATIVE_PIXMAP;
       handle.id = source_handle.id;
 #if defined(OS_LINUX)
       handle.native_pixmap_handle =
           gfx::CloneHandleForIPC(source_handle.native_pixmap_handle);
 #endif
       return handle;
     }
     case gfx::IO_SURFACE_BUFFER:
       return source_handle;
+    case gfx::DXGI_HANDLE:
+      gfx::GpuMemoryBufferHandle handle;
+      handle.type = gfx::DXGI_HANDLE;
+      handle.id = source_handle.id;
+      handle.handle = base::SharedMemory::DuplicateHandle(source_handle.handle);
+#if defined(OS_WIN)
+      handle.array_level = source_handle.array_level;
+#endif
+      return handle;
   }
   return gfx::GpuMemoryBufferHandle();
 }
 
 base::trace_event::MemoryAllocatorDumpGuid GpuMemoryBuffer::GetGUIDForTracing(
     uint64_t tracing_process_id) const {
   return gfx::GetGenericSharedGpuMemoryGUIDForTracing(tracing_process_id,
                                                       GetId());
 }
 
 }  // namespace gfx