GitLab

Apply a drop-shadow to make it clear where the desktop edge is.
Fix desktop resize handling to cope respect the scaling setting.

BUG=
TEST=

Review URL: http://codereview.chromium.org/7821017

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99893 0039d316-1c4b-4281-b951-d872f2087c98