Remove more unnamed namespace usages.

Skia prefers 'static' over 'unnamed' namespaces.

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

Review URL: https://codereview.chromium.org/139743010

git-svn-id: http://skia.googlecode.com/svn/trunk@13146 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed