Re-land this change: http://codereview.chromium.org/10967/show

Now with two improvements:
- no longer create WebContentsViews as WS_VISIBLE, to prevent them from showing up in the taskbar
- make sure overridden CreateView in NativeUIContents and StatusView have the correct signature.


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@5723 0039d316-1c4b-4281-b951-d872f2087c98
19 files changed