Remove the touch ack timeout handler out of the legacy touch event queue.

content/browser/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("//media/media_options.gni")
 import("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
@@ skipping 1073 matching lines @@
     "renderer_host/input/timeout_monitor.cc",
     "renderer_host/input/timeout_monitor.h",
     "renderer_host/input/touch_action_filter.cc",
     "renderer_host/input/touch_action_filter.h",
     "renderer_host/input/touch_emulator.cc",
     "renderer_host/input/touch_emulator.h",
     "renderer_host/input/touch_emulator_client.h",
     "renderer_host/input/touch_event_queue.h",
     "renderer_host/input/touch_selection_controller_client_aura.cc",
     "renderer_host/input/touch_selection_controller_client_aura.h",
+    "renderer_host/input/touch_timeout_handler.cc",
+    "renderer_host/input/touch_timeout_handler.h",
     "renderer_host/input/touchpad_tap_suppression_controller.cc",
     "renderer_host/input/touchpad_tap_suppression_controller.h",
     "renderer_host/input/touchscreen_tap_suppression_controller.cc",
     "renderer_host/input/touchscreen_tap_suppression_controller.h",
     "renderer_host/input/web_input_event_builders_android.cc",
     "renderer_host/input/web_input_event_builders_android.h",
     "renderer_host/input/web_input_event_builders_mac.h",
     "renderer_host/input/web_input_event_builders_mac.mm",
     "renderer_host/legacy_render_widget_host_win.cc",
     "renderer_host/legacy_render_widget_host_win.h",
@@ skipping 911 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }