Add the calculated WMClass to generated .desktop files.

(Also modifies it so that we only modify the wmclass_name, and not the
wmclass_class because the internal application names aren't meant for display
and are very ugly.)

BUG=20587
TEST=Verify with xprop that the WM_CLASS of application desktop links mmatches the StartupWMClass key in the desktop file.

Review URL: http://codereview.chromium.org/6759076

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@80656 0039d316-1c4b-4281-b951-d872f2087c98
6 files changed