Plumb the title direction up to the renderer host

We need the title direction to properly display titles in Chrome UI.

Previously I tried just modifying the title when we get it from
WebKit to include directionality overrides, but the extensions API
needs the underlying title without direction markers.

This change plumbs the title direction up to RenderViewHostDelegate.
A further patch will make use of it from there.

BUG=27094

Review URL: http://codereview.chromium.org/7453050

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@95007 0039d316-1c4b-4281-b951-d872f2087c98
11 files changed