Refactoring button field and its type (2nd try)

content/browser/renderer_host/input/web_input_event_builders_android.cc

 // Copyright 2013 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.
 
 #include "content/browser/renderer_host/input/web_input_event_builders_android.h"
 
 #include <android/input.h>
 
 #include "base/logging.h"
 #include "ui/events/android/key_event_utils.h"
@@ skipping 119 matching lines @@
   result.y = window_y;
   result.windowX = window_x;
   result.windowY = window_y;
   result.timeStampSeconds = time_sec;
   result.clickCount = click_count;
   result.modifiers = modifiers;
 
   if (type == WebInputEvent::MouseDown || type == WebInputEvent::MouseUp)
     result.button = button;
   else
-    result.button = WebMouseEvent::ButtonNone;
+    result.button = WebMouseEvent::Button::NoButton;
 
   return result;
 }
 
 WebMouseWheelEvent WebMouseWheelEventBuilder::Build(float ticks_x,
                                                     float ticks_y,
                                                     float tick_multiplier,
                                                     double time_sec,
                                                     int window_x,
                                                     int window_y) {
   WebMouseWheelEvent result;
 
   result.type = WebInputEvent::MouseWheel;
   result.x = window_x;
   result.y = window_y;
   result.windowX = window_x;
   result.windowY = window_y;
   result.timeStampSeconds = time_sec;
-  result.button = WebMouseEvent::ButtonNone;
+  result.button = WebMouseEvent::Button::NoButton;
   result.hasPreciseScrollingDeltas = true;
   result.deltaX = ticks_x * tick_multiplier;
   result.deltaY = ticks_y * tick_multiplier;
   result.wheelTicksX = ticks_x;
   result.wheelTicksY = ticks_y;
 
   return result;
 }
 
 WebGestureEvent WebGestureEventBuilder::Build(WebInputEvent::Type type,
                                               double time_sec,
                                               int x,
                                               int y) {
   DCHECK(WebInputEvent::isGestureEventType(type));
   WebGestureEvent result;
 
   result.type = type;
   result.x = x;
   result.y = y;
   result.timeStampSeconds = time_sec;
   result.sourceDevice = blink::WebGestureDeviceTouchscreen;
 
   return result;
 }
 
 }  // namespace content