Builds for chrome memroy bots (windows only) do not link due to the usage of std::locale, the reason for which is still unknown.
This patch avoids the usage of std::locale, while still enforcing "C" locale and checking for overflow.
Review URL: https://codereview.appspot.com/6392046

git-svn-id: https://angleproject.googlecode.com/svn/trunk@1203 736b8ea6-26fd-11df-bfd4-992fa37f6226