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This allows packaged applications to launch windows
already into a fullscreen, maximized, or minimized state.

Design doc: https://docs.google.com/a/google.com/document/d/1__SPIxd_sFVYFNdP55CouE-p61uLOWEL-X-2TEOJFdY/edit

BUG=163626

TEST=Manual testing is appropriate as this functionality is tightly coupled with operating system functionality and related automated tests have always been disabled flaky. Please use the window-state sample: https://github.com/GoogleChrome/chrome-app-samples/tree/master/window-state.

Review URL: https://chromiumcodereview.appspot.com/13609003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@192952 0039d316-1c4b-4281-b951-d872f2087c98