Refactor TokenValidatorImpl into a base class + implementation.

remoting/remoting_srcs.gypi

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'variables': {
     'remoting_base_sources': [
       'base/auth_token_util.cc',
       'base/auth_token_util.h',
       'base/auto_thread.cc',
@@ skipping 159 matching lines @@
       'protocol/transport.cc',
       'protocol/transport.h',
       'protocol/util.cc',
       'protocol/util.h',
       'protocol/third_party_authenticator_base.cc',
       'protocol/third_party_authenticator_base.h',
       'protocol/third_party_client_authenticator.cc',
       'protocol/third_party_client_authenticator.h',
       'protocol/third_party_host_authenticator.cc',
       'protocol/third_party_host_authenticator.h',
+      'protocol/token_validator.h',
       'protocol/v2_authenticator.cc',
       'protocol/v2_authenticator.h',
       'protocol/video_reader.cc',
       'protocol/video_reader.h',
       'protocol/video_stub.h',
       'protocol/video_writer.cc',
       'protocol/video_writer.h',
     ],
 
     'remoting_client_sources': [
@@ skipping 46 matching lines @@
       'client/plugin/pepper_port_allocator.h',
       'client/plugin/pepper_token_fetcher.cc',
       'client/plugin/pepper_token_fetcher.h',
       'client/plugin/pepper_util.cc',
       'client/plugin/pepper_util.h',
       'client/plugin/pepper_view.cc',
       'client/plugin/pepper_view.h',
     ],
   }
 }