[CRD iOS] Hook the touch input feedback

remoting/client/ui/BUILD.gn

 # Copyright 2017 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.
 
 source_set("ui") {
   sources = [
     "desktop_viewport.cc",
     "desktop_viewport.h",
     "direct_input_strategy.cc",
     "direct_input_strategy.h",
     "fling_animation.cc",
     "fling_animation.h",
     "fling_tracker.cc",
     "fling_tracker.h",
     "gesture_interpreter.cc",
     "gesture_interpreter.h",
     "input_strategy.h",
+    "renderer_proxy.cc",
+    "renderer_proxy.h",
     "view_matrix.cc",
     "view_matrix.h",
   ]
 
   public_deps = [
     "//remoting/proto",
     "//third_party/webrtc/base:rtc_base_approved",
   ]
 }
 
 source_set("unit_tests") {
   testonly = true
 
   sources = [
     "desktop_viewport_unittest.cc",
     "fling_animation_unittest.cc",
   ]
 
   configs += [ "//remoting/build/config:version" ]
 
   deps = [
     ":ui",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }