Fix variable name style violation from r151791

This change somehow slipped past the style check when landing
https://codereview.chromium.org/16379002/

Review URL: https://chromiumcodereview.appspot.com/15813017

git-svn-id: svn://svn.chromium.org/blink/trunk@151810 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed
tree: 72a142fc98186ca34d66e2edc0e5ccd239f594f5
  1. third_party/