Add GpuMemoryBuffer support for DXGI handles.

ui/gfx/gpu_memory_buffer.cc

Index: ui/gfx/gpu_memory_buffer.cc
diff --git a/ui/gfx/gpu_memory_buffer.cc b/ui/gfx/gpu_memory_buffer.cc
index e4e42434fabf9a5af5ab637e18ddee10768fdd13..df4dbddc9b472ef21ce0f05f6dd2bf7df425b9bc 100644
--- a/ui/gfx/gpu_memory_buffer.cc
+++ b/ui/gfx/gpu_memory_buffer.cc
@@ -31,6 +31,9 @@ GpuMemoryBufferHandle CloneHandleForIPC(
       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: {
@@ -45,6 +48,15 @@ GpuMemoryBufferHandle CloneHandleForIPC(
     }
     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();
 }