Turn a bunch of wchar_t* dictionary keys (in CrOS) into char* keys.
Turn a bunch of wchar_t* dictionary keys (in CrOS) into char* keys.

BUG=23581
TEST=builds and passes tests

Review URL: http://codereview.chromium.org/3132007

git-svn-id: http://src.chromium.org/svn/trunk/src@55889 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: bc962705bc1b5c22cf9eb87a780c55de9273cf7c
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser