Remove unnamed namespace usage from 'gm'.

Skia prefers static over unnamed namespaces.

BUG=None
TEST=None
R=bsalomon@google.com, robertphillips@google.com

Author: tfarina@chromium.org

Review URL: https://codereview.chromium.org/79173002

git-svn-id: http://skia.googlecode.com/svn/trunk@12326 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed