Auto merge of #6863 - pcwalton:null-layer-id, r=glennw

compositing: Don't count the root layer when checking to see when to take the screenshot.

 … as it isn't painted after first layout comes in.

r? @glennw

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This commit is contained in:
bors-servo 2015-07-30 23:58:05 -06:00
commit 1fc50c6ccf

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@ -1324,7 +1324,12 @@ impl<Window: WindowMethods> IOCompositor<Window> {
// have not requested a paint of the current epoch.
// If a layer has sent a request for the current epoch, but it hasn't
// arrived yet then this layer is waiting for a paint message.
if layer_data.requested_epoch == current_epoch && layer_data.painted_epoch != current_epoch {
//
// Also don't check the root layer, because the paint task won't paint
// anything for it after first layout.
if layer_data.id != LayerId::null() &&
layer_data.requested_epoch == current_epoch &&
layer_data.painted_epoch != current_epoch {
return true;
}