Windows: Put ScopedHGlobal in the right scope so it unlocks a STGMEDIUM's handle before we call ReleaseStgMedium.
Windows: Put ScopedHGlobal in the right scope so it unlocks a STGMEDIUM's handle before we call ReleaseStgMedium.

BUG=34528
TEST=Wine + Valgrind bot goes green.
Review URL: http://codereview.chromium.org/565049

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@38075 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser