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authorweili <weili@chromium.org>2016-04-22 15:25:14 -0700
committerCommit bot <commit-bot@chromium.org>2016-04-22 15:25:14 -0700
commit90c964fb069bfa9934493481f8ccfefef9c3b3fe (patch)
treec9e3d6ec93f68eb9c241411ec59132761d37d230 /core/fdrm
parent16a2033b3b7e2e348509c9938d77268e85e2b763 (diff)
downloadpdfium-90c964fb069bfa9934493481f8ccfefef9c3b3fe.tar.xz
Add a simple check for V4 cross reference table
Some unknown software generates cross reference table with the claimed object numbers are all off by one. Add a simple verification function to detect this scenario, thus have a chance to rebuild the correct cross reference table. To avoid unnecessary checks and potiential performance hit, we only check for the very first non free entry. BUG=602650 Review URL: https://codereview.chromium.org/1910063004
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