wstring: remove a ToWStringHack in command line URL code
wstring: remove a ToWStringHack in command line URL code

We can't search for something unless we can convert it to Unicode.
Also, rather than duplicating code for the "treat as URL" case,
fall through to shared code.

BUG=69467

Review URL: http://codereview.chromium.org/6624074

git-svn-id: http://src.chromium.org/svn/trunk/src@77363 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 6b6c582e60c5c525b34fb838f4a2b12859ce65ea
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser