Add MouseClampingFilter and update ClientSession to use it.

remoting/remoting.gyp

 # Copyright (c) 2012 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': {
     # TODO(dmaclach): can we pick this up some other way? Right now it's
     # duplicated from chrome.gyp
     'chromium_code': 1,
 
@@ skipping 1241 matching lines @@
         'host/local_input_monitor.h',
         'host/local_input_monitor_linux.cc',
         'host/local_input_monitor_mac.mm',
         'host/local_input_monitor_thread_linux.cc',
         'host/local_input_monitor_thread_linux.h',
         'host/local_input_monitor_thread_win.cc',
         'host/local_input_monitor_thread_win.h',
         'host/local_input_monitor_win.cc',
         'host/log_to_server.cc',
         'host/log_to_server.h',
+        'host/mouse_clamping_filter.cc',
+        'host/mouse_clamping_filter.h',
         'host/mouse_move_observer.h',
         'host/network_settings.h',
         'host/pin_hash.cc',
         'host/pin_hash.h',
         'host/policy_hack/policy_watcher.h',
         'host/policy_hack/policy_watcher.cc',
         'host/policy_hack/policy_watcher_linux.cc',
         'host/policy_hack/policy_watcher_mac.mm',
         'host/policy_hack/policy_watcher_win.cc',
         'host/register_support_host_request.cc',
@@ skipping 561 matching lines @@
                   '../base/allocator/allocator.gyp:allocator',
                 ],
               },
             ],
           ],
         }],
       ],  # end of 'conditions'
     },  # end of target 'remoting_unittests'
   ],  # end of targets
 }