Replaces the % character with \x when generating Windows shortcuts via 
File->"Create application shortcuts." The \x is converted back to % in 
handling the --app switch.

BUG=23693
TEST=None

Review URL: http://codereview.chromium.org/515028

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@35377 0039d316-1c4b-4281-b951-d872f2087c98
  SetAsDefaultBrowserTask() { }

  SetAsDefaultBrowserTask() { }
