Add support for split Public Suffix List distinctions.

Add support for split Public Suffix List distinctions. 

This adds support for the private additions to the Public Suffix List. 

* Since net::RegistryControlledDomainService only contained static methods, this 
  CL changes these methods to be contained within the namespace 
  net::registry_controlled_domains and removes the class entirely. 
* All methods defined as part of net::registry_controlled_domains now 
  have a mandatory argument to specify whether the private registries 
  should be included. 
* Since the old implementation did not take into account the private 
  registries, this sets all old callers to use EXCLUDE_PRIVATE as the 
  net::registry_controlled_domains::PrivateRegistryFilter argument. 
* Changes the parameter for including unknown registries or not to be an enum 
  instead of a boolean, using a similar naming scheme as for the private 
  registries: net::registry_controlled_domains::UnknownRegistryFilter. 
* This also updates the effective-TLD data file to: 
  45cfff9c781f 2013-04-23 11:51 +0100 
  It includes changes from a number of Mozilla bugs, listed on 
  https://hg.mozilla.org/mozilla-central/log/45cfff9c781f/netwerk/dns/effective_tld_names.dat 
  between 290afd57d2a8 (2012-07-04 16:08 +0100) and 
  45cfff9c781f (2013-04-23 11:51 +0100). 

Patch set 1 is equal to the committed patch set from:
https://codereview.chromium.org/13979002/

TBRing OWNERs from original CL.

TBR=pam@chromium.org
BUG=37436, 96086
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=200066

[nyquist, 2013-05-14 05:30:23]

pam: PTAL at patch set 2 diff from patch set 1 for the file:
net/tools/tld_cleanup/tld_cleanup_util.cc

That is the only file that has changed.

[Pam (message me for reviews), 2013-05-14 07:44:28]

LGTM once the win_x64_rel builder passes.

- Pam

[nyquist, 2013-05-14 20:49:36]

Committed patchset #5 manually as r200066 (presubmit successful).