Revert 90820 - Multi-Profiles: New Profile Setup UI

Revert 90820 - Multi-Profiles: New Profile Setup UI

This change adds DOM UI to setup a new profile. When the user clicks Wrench Menu -> New Profile the following happens:
    1 we create a new profile and give it a good default name and icon
    2 we open a browser window and navigate it to chrome://newprofile
    3 user customizes the name and icon if they wish and then click Create
    4 we navigate to the new tab page where we optionally show the Sign In To Sync promo page

This change implements 3 and 4. Screenshots:
  - http://www.dropmocks.com/mWxdW

BUG=None
TEST=Navigated to chrome://newprofile and verified that things looked ok

Review URL: http://codereview.chromium.org/7256002

TBR=sail@chromium.org
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=90827