Remove ICookieManager.SetSupportedSchemes

[amaitland]

ICookieManager.SetSupportedSchemes was removed from CEF in commit https://bitbucket.org/chromiumembedded/cef/commits/5bfcfaab7376dee7fafb00af64400fa3b95d33d4

Move cookieable scheme configuration to settings (see issue #2969)

The Chrome runtime requires that cookieable scheme information be available
at Profile initialization time because it also triggers NetworkContext creation
at the same time. To make this possible, and to avoid various race conditions
when setting state, the cookieable scheme configuration has been added as
|cookieable_schemes_list| and |cookieable_schemes_exclude_defaults| in
CefSettings and CefBrowserContextSettings. The CefCookieManager::
SetSupportedSchemes and CefBrowserProcessHandler::GetCookieableSchemes methods
are no longer required and have been removed.

The CefSettings.CookieableSchemesList, CefSettings.CookieableSchemesExcludeDefaults, RequestContextSettings.CookieableSchemesList, and RequestContextSettings.CookieableSchemesExcludeDefaults properties will be added.