gpu: Export/import buffers created by Ozone GMB factory.

gpu/ipc/client/gpu_channel_host.cc

Index: gpu/ipc/client/gpu_channel_host.cc
diff --git a/gpu/ipc/client/gpu_channel_host.cc b/gpu/ipc/client/gpu_channel_host.cc
index ddadbdf684addcc1808457645fb36da5a1b5656c..91a881e4421c9b95274c8b76bb8832b385c81d60 100644
--- a/gpu/ipc/client/gpu_channel_host.cc
+++ b/gpu/ipc/client/gpu_channel_host.cc
@@ -242,9 +242,32 @@ gfx::GpuMemoryBufferHandle GpuChannelHost::ShareGpuMemoryBufferToGpuProcess(
       *requires_sync_point = false;
       return handle;
     }
+#if defined(USE_OZONE)
+    case gfx::OZONE_NATIVE_PIXMAP: {
+      std::vector<base::ScopedFD> scoped_fds;
+      for (auto& fd : source_handle.native_pixmap_handle.fds) {
+        base::ScopedFD scoped_fd(HANDLE_EINTR(dup(fd.fd)));
+        if (!scoped_fd.is_valid()) {
+          PLOG(ERROR) << "dup";
+          return gfx::GpuMemoryBufferHandle();
+        }
+        scoped_fds.emplace_back(std::move(scoped_fd));
+      }
+      gfx::GpuMemoryBufferHandle handle;
+      handle.type = gfx::OZONE_NATIVE_PIXMAP;
+      handle.id = source_handle.id;
+      for (auto& scoped_fd : scoped_fds) {
+        handle.native_pixmap_handle.fds.emplace_back(scoped_fd.release(),
+                                                     true /* auto_close */);
+      }
+      handle.native_pixmap_handle.strides_and_offsets =
+          source_handle.native_pixmap_handle.strides_and_offsets;
+      *requires_sync_point = false;
+      return handle;
+    }
+#endif
     case gfx::IO_SURFACE_BUFFER:
     case gfx::SURFACE_TEXTURE_BUFFER:
-    case gfx::OZONE_NATIVE_PIXMAP:
       *requires_sync_point = true;
       return source_handle;
     default: