Refactoring button field and its type

content/browser/devtools/protocol/color_picker.cc

 // 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.
 
 #include "content/browser/devtools/protocol/color_picker.h"
 
 #include "base/bind.h"
 #include "build/build_config.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
@@ skipping 97 matching lines @@
     UpdateCursor();
   }
 }
 
 bool ColorPicker::HandleMouseEvent(const blink::WebMouseEvent& event) {
   last_cursor_x_ = event.x;
   last_cursor_y_ = event.y;
   if (frame_.drawsNothing())
     return true;
 
-  if (event.button == blink::WebMouseEvent::ButtonLeft &&
+  if (event.button == blink::WebMouseEvent::Button::Left &&
       event.type == blink::WebInputEvent::MouseDown) {
     if (last_cursor_x_ < 0 || last_cursor_x_ >= frame_.width() ||
         last_cursor_y_ < 0 || last_cursor_y_ >= frame_.height()) {
       return true;
     }
 
     SkAutoLockPixels lock_image(frame_);
     SkColor sk_color = frame_.getColor(last_cursor_x_, last_cursor_y_);
     callback_.Run(SkColorGetR(sk_color), SkColorGetG(sk_color),
                   SkColorGetB(sk_color), SkColorGetA(sk_color));
@@ skipping 126 matching lines @@
                  kHotspotOffset * device_scale_factor);
 
   cursor.InitFromCursorInfo(cursor_info);
   DCHECK(host_);
   host_->SetCursor(cursor);
 }
 
 }  // namespace page
 }  // namespace devtools
 }  // namespace content