Refactoring button field and its type

third_party/WebKit/Source/core/page/DragController.cpp

 /*
  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 101 matching lines @@
         return false;
     }
     // Make sure MSVC doesn't complain that not all control paths return a value.
     return false;
 }
 #endif
 
 static PlatformMouseEvent createMouseEvent(DragData* dragData)
 {
     return PlatformMouseEvent(dragData->clientPosition(), dragData->globalPosition(),
-        LeftButton, PlatformEvent::MouseMoved, 0,
+        WebPointerProperties::Button::Left, PlatformEvent::MouseMoved, 0,
         static_cast<PlatformEvent::Modifiers>(dragData->modifiers()),
         PlatformMouseEvent::RealOrIndistinguishable, monotonicallyIncreasingTime());
 }
 
 static DataTransfer* createDraggingDataTransfer(DataTransferAccessPolicy policy, DragData* dragData)
 {
     return DataTransfer::create(DataTransfer::DragAndDrop, policy, dragData->platformData());
 }
 
 DragController::DragController(Page* page)
@@ skipping 864 matching lines @@
 
 DEFINE_TRACE(DragController)
 {
     visitor->trace(m_page);
     visitor->trace(m_documentUnderMouse);
     visitor->trace(m_dragInitiator);
     visitor->trace(m_fileInputElementUnderMouse);
 }
 
 } // namespace blink