Fix leak in GetCertSubjectAltNamesOfType().  Found by valgrind.
Fix leak in GetCertSubjectAltNamesOfType().  Found by valgrind.

ERROR:root:Leak_DefinitelyLost
  malloc (ome/kcc/depot2-kcc-ts_valgrind-client/google_vendor_src_branch/valgrind/trunk/coregrind/m_replacemalloc/vg_replace_malloc.c:207)
  ...
  CERT_FindCertExtension (/usr/lib32/libnss3.so.1d)
  net::(anonymous namespace)::GetCertSubjectAltNamesOfType(CERTCertificateStr*, CERTGeneralNameTypeEnum, std::vector<std::string, std::allocator<std::string> >*) (net/base/x509_certificate_nss.cc:134)

Review URL: http://codereview.chromium.org/48097

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@11941 0039d316-1c4b-4281-b951-d872f2087c98

adobe/chromium,Crystalnix/house-of-life-chromium,ropik/chromium,gavinp/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,yitian134/chromium,Crystalnix/house-of-life-chromium,adobe/chromium,Crystalnix/house-of-life-chromium,yitian134/chromium,adobe/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium,adobe/chromium,Crystalnix/house-of-life-chromium,gavinp/chromium,adobe/chromium,ropik/chromium,ropik/chromium,yitian134/chromium,yitian134/chromium,gavinp/chromium,adobe/chromium,ropik/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,gavinp/chromium,ropik/chromium,ropik/chromium,gavinp/chromium,ropik/chromium,gavinp/chromium,gavinp/chromium,Crystalnix/house-of-life-chromium,Crystalnix/house-of-life-chromium