eaf1f33e56
Debug builds log invalid file errors on launch of anything using the embedding API due to an unconditional use of assets_dir, even though only one of assets_dir or assets_path needs to be set (and the embedding API currently uses the latter). This checks that the FD has been set before trying to use it to create an asset resolver. Also eliminates a duplicate code path in embedder.cc, where it was calling RunConfiguration::InferFromSettings, then running exactly the same asset manager creation code again locally.
Flutter Engine
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