Adding an It2Me host binary which is uiaccess enabled.

remoting/host/BUILD.gn

 # 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.
 
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/config/win/manifest.gni")
 import("//build/util/version.gni")
 import("//chrome/version.gni")
 import("//remoting/remoting_enable.gni")
@@ skipping 14 matching lines @@
 if (is_win) {
   import("//remoting/host/predefines_win.gni")
 } else if (is_mac) {
   import("//build/config/mac/rules.gni")
   import("//third_party/icu/config.gni")
 }
 
 # Reference this manifest to indicate that a process is per-monitor DPI aware.
 dpi_aware_manifest = "//remoting/host/win/dpi_aware.manifest"
 
-# Depending on this target gives a default executable manifest with the addition
-# of the DPI aware tag.
+# Reference this manifest to give the binary the uiAccess privilege.
+enable_uiaccess_manifest = "//remoting/host/win/enable_uiaccess.manifest"
+
+# Depending on this target gives the executable a default manifest with the
+# addition of the DPI aware tag.
 windows_manifest("dpi_aware_exe_manifest") {
   sources = [
     as_invoker_manifest,
     common_controls_manifest,
     default_compatibility_manifest,
     dpi_aware_manifest,
   ]
   type = "exe"
 }
 
-# Depending on this target gives a default executable manifest with the addition
-# of the DPI aware tag and a requestedExecutionLevel of requireAdministrator.
+# Depending on this target gives the executable a default manifest with the
+# addition of the DPI aware tag and requestedExecutionLevel of
+# requireAdministrator.
 windows_manifest("dpi_aware_elevated_exe_manifest") {
   sources = [
     common_controls_manifest,
     default_compatibility_manifest,
     dpi_aware_manifest,
     require_administrator_manifest,
   ]
   type = "exe"
 }
 
+# Depending on this target gives the executable a default manifest with the
+# addition of the DPI aware tag and enables uiAccess.
+windows_manifest("dpi_aware_uiaccess_exe_manifest") {
+  sources = [
+    common_controls_manifest,
+    default_compatibility_manifest,
+    dpi_aware_manifest,
+    enable_uiaccess_manifest,
+  ]
+  type = "exe"
+}
+
 # GYP version: remoting/remoting_host:remoting_host_credits
 action("credits") {
   # We put this in $root_build_dir/gen/remoting instead of
   # $root_build_dir/gen/remoting/host (target_gen_dir) for
   # compatibility w/ GYP, since the installer needs the file to
   # be at the same location.
   about_credits_file = "$root_build_dir/gen/remoting/CREDITS.txt"
   script = "//tools/licenses.py"
 
   inputs = [
@@ skipping 1187 matching lines @@
       deps = [
         ":credits",
         ":remote_security_key",
         ":remoting_core",
         ":remoting_desktop",
         ":remoting_me2me_host",
         ":remoting_native_messaging_host",
         ":remoting_native_messaging_manifests",
         ":remoting_start_host",
         "it2me:remote_assistance_host",
+        "it2me:remote_assistance_host_uiaccess",
         "//third_party/icu:icudata",
       ]
 
       _output = "$root_out_dir/remoting-me2me-host-$target_os.zip"
 
       outputs = [
         _output,
       ]
       if (is_chrome_branded) {
         _branding = "Chrome"
       } else {
         _branding = "Chromium"
       }
 
       if (is_official_build) {
         _official_build = "1"
       } else {
         _official_build = "0"
       }
 
       # Due to GN build issue http://crbug.com/633650, we need to actively set
       # inputs parameter to tell GN to depend on these files. So change to each
       # following files will trigger this target to be rebuilt.
       # TODO(zijiehe): Remove inputs parameter once bug 633650 has been
       # addressed.
       inputs = [
         "$root_out_dir/remote_assistance_host.exe",
+        "$root_out_dir/remote_assistance_host_uiaccess.exe",
         "$root_out_dir/remote_security_key.exe",
         "$root_out_dir/remoting_core.dll",
         "$root_out_dir/remoting_desktop.exe",
         "$root_out_dir/remoting_host.exe",
         "$root_out_dir/remoting_native_messaging_host.exe",
         "$root_out_dir/remoting_start_host.exe",
         "$root_gen_dir/remoting/CREDITS.txt",
         "$root_out_dir/remoting/com.google.chrome.remote_assistance.json",
         "$root_out_dir/remoting/com.google.chrome.remote_desktop.json",
         "$root_out_dir/icudtl.dat",
       ]
 
       _generated_files = rebase_path(inputs, root_build_dir)
       _generated_files += [ rebase_path("//remoting/resources/chromoting.ico") ]
 
       # _generated_dst_files must contain the same files in the same order as
       # _generated_files, otherwise the Windows MSI will not be built correctly.
       _generated_dst_files = [
         "files/remote_assistance_host.exe",
+        "files/remote_assistance_host_uiaccess.exe",
         "files/remote_security_key.exe",
         "files/remoting_core.dll",
         "files/remoting_desktop.exe",
         "files/remoting_host.exe",
         "files/remoting_native_messaging_host.exe",
         "files/remoting_start_host.exe",
         "files/CREDITS.txt",
         "files/com.google.chrome.remote_assistance.json",
         "files/com.google.chrome.remote_desktop.json",
         "files/icudtl.dat",
@@ skipping 345 matching lines @@
                       root_build_dir),
           rebase_path(outputs[0], root_build_dir),
         ]
       }
     } else {
       group("remoting_host_installation") {
       }
     }
   }
 }