Fix dragging text inside a input element nested in a draggable element.

Source/core/page/EventHandler.h

 /*
  * Copyright (C) 2006, 2007, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 283 matching lines @@
     void setLastKnownMousePosition(const PlatformMouseEvent&);
 
     Frame* const m_frame;
 
     bool m_mousePressed;
     bool m_capturesDragging;
     RefPtr<Node> m_mousePressNode;
 
     bool m_mouseDownMayStartSelect;
     bool m_mouseDownMayStartDrag;
-    bool m_dragMayStartSelectionInstead;
     bool m_mouseDownWasSingleClickInSelection;
     enum SelectionInitiationState { HaveNotStartedSelection, PlacedCaret, ExtendedSelection };
     SelectionInitiationState m_selectionInitiationState;
 
     LayoutPoint m_dragStartPos;
 
     bool m_panScrollButtonPressed;
 
     Timer<EventHandler> m_hoverTimer;
     Timer<EventHandler> m_cursorUpdateTimer;
@@ skipping 59 matching lines @@
     bool m_longTapShouldInvokeContextMenu;
     OwnPtr<IntPoint> m_lastSyntheticPinchAnchorCss;
     OwnPtr<IntPoint> m_lastSyntheticPinchAnchorDip;
     OwnPtr<IntPoint> m_lastSyntheticPanLocation;
     float m_syntheticPageScaleFactor;
 };
 
 } // namespace WebCore
 
 #endif // EventHandler_h