Remove MouseRelatedEvent

third_party/WebKit/Source/core/events/BUILD.gn

 # Copyright 2016 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("//third_party/WebKit/Source/core/core.gni")
 
 blink_core_sources("events") {
   sources = [
     "AddEventListenerOptionsResolved.cpp",
     "AddEventListenerOptionsResolved.h",
@@ skipping 40 matching lines @@
     "GenericEventQueue.h",
     "GestureEvent.cpp",
     "GestureEvent.h",
     "HashChangeEvent.h",
     "InputEvent.cpp",
     "InputEvent.h",
     "KeyboardEvent.cpp",
     "MessageEvent.cpp",
     "MessageEvent.h",
     "MouseEvent.cpp",
-    "MouseRelatedEvent.cpp",
     "MutationEvent.cpp",
     "MutationEvent.h",
     "NavigatorEvents.cpp",
     "NavigatorEvents.h",
     "NodeEventContext.cpp",
     "NodeEventContext.h",
     "PageTransitionEvent.cpp",
     "PageTransitionEvent.h",
     "PointerEvent.cpp",
     "PointerEvent.h",
@@ skipping 33 matching lines @@
     "WheelEvent.h",
     "WindowEventContext.cpp",
     "WindowEventContext.h",
   ]
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }