GitLab

Fixed page passed into FPDFPageObj_NewImgeObj().

BUG=385119

Review URL: https://codereview.chromium.org/485413002

Cr-Commit-Position: refs/heads/master@{#290780}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@290780 0039d316-1c4b-4281-b951-d872f2087c98