Removed base dependency from PGL.
Removed base dependency from PGL.

This is so it can be statically linked with untrusted NaCl code.

TEST=try
BUG=none

Review URL: http://codereview.chromium.org/3366021

git-svn-id: http://src.chromium.org/svn/trunk/src@59321 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: fe1fc183a4ebcf9d7b0560c40bc561122af479e5
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