GitLab

It still takes time to componentize autocomplete input and search
features. However, we have componentized some important parts
already. The added code will be replaced by the real autocomplete
code in the future, but meanwhile, this is good enough.

Feature:
- the logic to check if the input looks like URL / host names
- canonicalize the input to form the actual URL (http://...)
- use TemplateURLService to create the search result page URL
  if it looks like a query.

BUG=387207
R=oshima@chromium.org, hashimoto@chromium.org
TBR=pkasting@chromium.org, jar@chromium.org
TEST=manually

Review URL: https://codereview.chromium.org/382683002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@282497 0039d316-1c4b-4281-b951-d872f2087c98