Change if/else to if in two GrGLInterface factories.

R=robertphillips@google.com, rmistry@google.com
TBR=robertphillips@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/216313006

git-svn-id: http://skia.googlecode.com/svn/trunk@13996 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed