WebP: Fix memory leak during decoding on failure #5798
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When creating the `WebPAnimDecoder` object, we create a `WebPAnimDecoderObject` and populate its data using `WebPDataCopy()`. Subsequently, if either `WebPAnimDecoderNew()` or `WebPAnimDecoderGetInfo()` fails, data is not currently deallocated. This commit clears the decoder object's data in that situation.
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When creating the
WebPAnimDecoderobject, we create aWebPAnimDecoderObjectand populate its data usingWebPDataCopy().Subsequently, if either
WebPAnimDecoderNew()orWebPAnimDecoderGetInfo()fails, data is not currently deallocated, which may cause memory leaks.This PR clears the decoder object's data in that situation.