Fixed Skia compilation error with strict clang.

BUG=skia:
R=reed@google.com, sergeyberezin@chromium.org, hcm@google.com

Author: kolczyk@opera.com

Review URL: https://codereview.chromium.org/227043006

git-svn-id: http://skia.googlecode.com/svn/trunk@14071 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/AUTHORS b/AUTHORS
index df3b81a..84a769e 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -19,6 +19,7 @@
 Intel <*@intel.com>
 Jacek Caban <cjacek@gmail.com>
 NVIDIA <*@nvidia.com>
+Opera Software ASA <*@opera.com>
 Samsung <*@samsung.com>
 Skia Buildbots <skia.buildbots@gmail.com>
 Steve Singer <steve@ssinger.info>