Add tests to verify bookmark ordering and nesting of groups.
Add tests to verify bookmark ordering and nesting of groups.

testOrdering - from Srikanth
testDeepNesting - from Ismail

Review URL: http://codereview.chromium.org/1250004

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@42549 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser