Revert 235012 "Create hosted apps from any website for streamlined hosted apps." Breaks Task manager and DevTools shortcuts on Mac.

TBR=calamity
BUG=319715

Review URL: https://codereview.chromium.org/68763015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235320 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235320