Fix possible integer overflow in Opus with ~16MB fed to the decoder.

BUG=160480

Review URL: https://codereview.chromium.org/11575026
Patch from Jüri Aedla <aedla@chromium.org>.

git-svn-id: svn://svn.chromium.org/chrome/trunk/deps/third_party/opus@173498 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed