Implement CSS3TextDecorations runtime flag in favor of CSS3_TEXT

Source/core/platform/graphics/GraphicsContext.h

 /*
  * Copyright (C) 2003, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008-2009 Torch Mobile, Inc.
  * Copyright (C) 2013 Google 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.
@@ skipping 64 matching lines @@
     TextModeFill      = 1 << 0,
     TextModeStroke    = 1 << 1,
 };
 typedef unsigned TextDrawingModeFlags;
 
 enum StrokeStyle {
     NoStroke,
     SolidStroke,
     DottedStroke,
     DashedStroke,
-#if ENABLE(CSS3_TEXT)
     DoubleStroke,
     WavyStroke,
-#endif // CSS3_TEXT
 };
 
 enum InterpolationQuality {
     InterpolationDefault,
     InterpolationNone,
     InterpolationLow,
     InterpolationMedium,
     InterpolationHigh
 };
 
@@ skipping 497 matching lines @@
     // FIXME: Make this go away: crbug.com/236892
     bool m_updatingControlTints;
     bool m_accelerated;
     bool m_isCertainlyOpaque;
     bool m_printing;
 };
 
 } // namespace WebCore
 
 #endif // GraphicsContext_h