
Only disable the spurious warning on versions of GCC that need it, so we don't hide real warnings or break older compilers unnecessarily. Followup from https://codereview.chromium.org/384843002/ BUG=392872 Review URL: https://codereview.chromium.org/413023002 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@286347 0039d316-1c4b-4281-b951-d872f2087c98