Safebrowsing related fixes for linux_redux compile.

BUG=313706

Review URL: https://codereview.chromium.org/63683002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@234043 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 234043