[clang] Fixed clang compile failure introduced by 60976.
[clang] Fixed clang compile failure introduced by 60976.

Put GetVlogLevelHelper definition before GetVlogLevel definition.
gcc/msvc is fine with this, but not clang (correctly).

BUG=none
TEST=compiles

Review URL: http://codereview.chromium.org/3525006

git-svn-id: http://src.chromium.org/svn/trunk/src@60991 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 06f1610857b622412fa7183964af1d8e4de4e44d
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