Additional corruption instrumentation in safe-browsing filters.

Prior instrumentation indicates potential memory corruption detected
in creating the bloom filter and prefix set.  Add new code to see if
it's transient (probably memory corruption) or persistent (probably
code flaws).

BUG=71832


Review URL: https://chromiumcodereview.appspot.com/10857002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151641 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed