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authorRyan Harrison <rharrison@chromium.org>2018-07-17 17:25:47 +0000
committerChromium commit bot <commit-bot@chromium.org>2018-07-17 17:25:47 +0000
commita97a660d47cd500a00f69ad429de0ca1551c7198 (patch)
tree06c048d481398bed2d240055778f02bdce6eb758 /public/fpdf_formfill.h
parentff402c2c4ce8ae8690959262ca731d5cc6bd7015 (diff)
downloadpdfium-a97a660d47cd500a00f69ad429de0ca1551c7198.tar.xz
Reserve space for result in ::FilterContents
This changes the implementation for the specific bug listed and proactively fixes it in the other overrides. The general bug here is that if you concat a WideString in a tight loop without first reserving space, each call will cause an allocation size change and memcpy. This is very expensive and causes ClusterFuzz cases to timeout. BUG=chromium:863295 Change-Id: I6c1d900a31b98cd9ddcf91d1ec0f3973c9cdfa26 Reviewed-on: https://pdfium-review.googlesource.com/38110 Reviewed-by: Tom Sepez <tsepez@chromium.org> Reviewed-by: Henrique Nakashima <hnakashima@chromium.org> Commit-Queue: Ryan Harrison <rharrison@chromium.org>
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