Bug 1979755 Comment 3 Edit History

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Original comment by
on 
Probably we just need to remove the `mContent.IsNone` checks (for sizing and painting purposes):
https://searchfox.org/mozilla-central/rev/45aff2630491c295fc6c28198b629ff2de14e637/layout/forms/nsComboboxControlFrame.cpp#169-170,177
```cpp
nscoord nsComboboxControlFrame::IntrinsicISize(const IntrinsicSizeInput& aInput,
                                               IntrinsicISizeType aType) {
...
  if (!containISize && !StyleContent()->mContent.IsNone()) {
```

https://searchfox.org/mozilla-central/rev/45aff2630491c295fc6c28198b629ff2de14e637/layout/forms/nsComboboxControlFrame.cpp#304,310
```cpp
void nsComboboxControlFrame::GetLabelText(nsAString& aLabel) {
...
  if (mDisplayedIndex != -1 && !StyleContent()->mContent.IsNone()) {
```
Revision 1 by
on 
Probably we just need to remove the `&& !StyleContent()->mContent.IsNone()` checks (for sizing and painting purposes):
https://searchfox.org/mozilla-central/rev/45aff2630491c295fc6c28198b629ff2de14e637/layout/forms/nsComboboxControlFrame.cpp#169-170,177
```cpp
nscoord nsComboboxControlFrame::IntrinsicISize(const IntrinsicSizeInput& aInput,
                                               IntrinsicISizeType aType) {
...
  if (!containISize && !StyleContent()->mContent.IsNone()) {
```

https://searchfox.org/mozilla-central/rev/45aff2630491c295fc6c28198b629ff2de14e637/layout/forms/nsComboboxControlFrame.cpp#304,310
```cpp
void nsComboboxControlFrame::GetLabelText(nsAString& aLabel) {
...
  if (mDisplayedIndex != -1 && !StyleContent()->mContent.IsNone()) {
```

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