Don't send queries when URL is like:

      - starts with http:// or https:// and includes username (e.g.
http://me@test.com/)
- starts with http:// or https:// and includes query (e.g. http://test.com/?q=x)
- starts with https:// and includes path component (e.g. https://test.com/path)
so as not to leak user data to the suggest server.

Patch by takayoshi.kochi@gmail.com
BUG=1647



git-svn-id: svn://svn.chromium.org/chrome/trunk/src@1978 0039d316-1c4b-4281-b951-d872f2087c98