Teach main thread event queue about closures.

content/common/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("features.gni")
 import("//build/buildflag_header.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//mojo/public/tools/bindings/mojom.gni")
@@ skipping 182 matching lines @@
     "input/synthetic_smooth_drag_gesture_params.cc",
     "input/synthetic_smooth_drag_gesture_params.h",
     "input/synthetic_smooth_scroll_gesture_params.cc",
     "input/synthetic_smooth_scroll_gesture_params.h",
     "input/synthetic_tap_gesture_params.cc",
     "input/synthetic_tap_gesture_params.h",
     "input/synthetic_web_input_event_builders.cc",
     "input/synthetic_web_input_event_builders.h",
     "input/touch_event_stream_validator.cc",
     "input/touch_event_stream_validator.h",
-    "input/web_input_event_queue.h",
     "input/web_touch_event_traits.cc",
     "input/web_touch_event_traits.h",
     "input_messages.h",
     "inter_process_time_ticks_converter.cc",
     "inter_process_time_ticks_converter.h",
     "layer_tree_settings_factory.cc",
     "layer_tree_settings_factory.h",
     "mac/attributed_string_coder.h",
     "mac/attributed_string_coder.mm",
     "mac/font_descriptor.h",
@@ skipping 426 matching lines @@
     "//url/mojo:url_mojom_origin",
   ]
 
   overridden_deps = [ "//ipc:mojom" ]
   component_deps = [ "//ipc" ]
 
   export_class_attribute = "CONTENT_EXPORT"
   export_define = "CONTENT_IMPLEMENTATION=1"
   export_header = "content/common/content_export.h"
 }