Adding an It2Me host binary which is uiaccess enabled.

remoting/host/installer/win/chromoting.wxs

 <?xml version="1.0"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
 
   <?define EventSourceName = "chromoting" ?>
   <?define ServiceName = "chromoting" ?>
 
   <!-- TODO(alexeypa): There strings should be localized,
        see http://crbug.com/121785 -->
   <?if $(var.Branding) ~= Chrome ?>
     <?define ChromotingHost = "Chrome Remote Desktop Host" ?>
@@ skipping 191 matching lines @@
       </Component>
 
       <Component Id="remote_assistance_host" Guid="*">
         <File Id="remote_assistance_host.exe"
               DiskId="1"
               KeyPath="yes"
               Name="remote_assistance_host.exe"
               Vital="yes"/>
       </Component>
 
+      <Component Id="remote_assistance_host_uiaccess" Guid="*">
+          <File Id="remote_assistance_host_uiaccess.exe"
+              DiskId="1"
+              KeyPath="yes"
+              Name="remote_assistance_host_uiaccess.exe"
+              Vital="yes"/>
+      </Component>
+
       <Component Id="native_messaging_host_manifest" Guid="*">
         <File Id="com.google.chrome.remote_desktop.json"
               DiskId="1"
               KeyPath="yes"
               Name="com.google.chrome.remote_desktop.json"
               Vital="yes"/>
       </Component>
 
       <Component Id="remote_assistance_host_manifest" Guid="*">
         <File Id="com.google.chrome.remote_assistance.json"
@@ skipping 391 matching lines @@
       <ComponentRef Id="delete_usagestats"/>
       <?if $(var.OfficialBuild) != 0 ?>
         <ComponentRef Id="omaha_registration"/>
       <?endif?>
       <ComponentRef Id="icudtl"/>
       <ComponentRef Id="native_messaging_host_manifest"/>
       <ComponentRef Id="native_messaging_host_registry"/>
       <ComponentRef Id="remote_assistance_host"/>
       <ComponentRef Id="remote_assistance_host_manifest"/>
       <ComponentRef Id="remote_assistance_host_registry"/>
+      <ComponentRef Id="remote_assistance_host_uiaccess"/>
       <ComponentRef Id="remote_security_key"/>
       <ComponentRef Id="remote_security_key_registration"/>
       <ComponentRef Id="remoting_native_messaging_host"/>
       <ComponentRef Id="remoting_core"/>
       <ComponentRef Id="remoting_desktop"/>
       <ComponentRef Id="remoting_host"/>
       <ComponentRef Id="remoting_lib"/>
       <ComponentRef Id="remoting_pairing_registry"/>
       <ComponentRef Id="remoting_start_host"/>
       <ComponentRef Id="sawbuck_provider"/>
@@ skipping 12 matching lines @@
       <!-- Set the service name and description -->
       <Custom Action="set_service_display_name" Before="InstallInitialize"/>
       <Custom Action="set_service_description" Before="InstallInitialize"/>
 
       <!-- Schedule RemoveExistingProducts before installing any files.
            See http://msdn.microsoft.com/en-us/library/aa371197.aspx. -->
       <RemoveExistingProducts After="InstallInitialize" />
     </InstallExecuteSequence>
   </Product>
 </Wix>