Oilpan: Fix a raw pointer in FrameLoaderClientImplTest.

A simple follow-up of https://codereview.chromium.org/1306793003/.

BUG=509911
R=haraken@chromium.org, oilpan-reviews@chromium.org, sigbjornf@opera.com

Review URL: https://codereview.chromium.org/1314703003

git-svn-id: svn://svn.chromium.org/blink/trunk@201125 bbb929c8-8fbe-4397-9dbb-9b2b20218538
1 file changed