Fix a few issues with Chrome-in-Views-Desktop:

- adds a NativeTabContentsContainerViews, which is just a view that parents the NativeTabContentsViewViews' View.
This prevents flicker when switching tabs.
- SetPureViews is called earlier during browser_main, so that the desktop widget is created with an input method. This prevents an assert while typing in the omnibox.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/7256001

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@90450 0039d316-1c4b-4281-b951-d872f2087c98
7 files changed