Add DoNotDropColorBitmapTables() API.

Adding a API not to drop CBDT/CBLC tables. OTS doesn't recognize the tables
for now, but trusts users of this API, assuming users exactly know the risks.

BUG=324187
R=ksakamoto@chromium.org

Review URL: https://codereview.chromium.org/341983012

git-svn-id: http://ots.googlecode.com/svn/trunk@114 a4e77c2c-9104-11de-800e-5b313e0d2bf3
10 files changed