[WIP] Supporting arm_neon_optional flag for blink platform.

Source/platform/graphics/filters/FEGaussianBlur.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2010 Igalia, S.L.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 10 matching lines @@
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 
 #include "platform/graphics/filters/FEGaussianBlur.h"
 
 #include "platform/graphics/GraphicsContext.h"
+#if HAVE(ARM_NEON_INTRINSICS)
 #include "platform/graphics/cpu/arm/filters/FEGaussianBlurNEON.h"
+#endif
 #include "platform/graphics/filters/ParallelJobs.h"
 #include "platform/graphics/filters/SkiaImageFilterBuilder.h"
 #include "platform/text/TextStream.h"
 #include "wtf/MathExtras.h"
 #include "wtf/Uint8ClampedArray.h"
 
 #include "SkBlurImageFilter.h"
 
 static inline float gaussianKernelFactor()
 {
@@ skipping 135 matching lines @@
 {
     writeIndent(ts, indent);
     ts << "[feGaussianBlur";
     FilterEffect::externalRepresentation(ts);
     ts << " stdDeviation=\"" << m_stdX << ", " << m_stdY << "\"]\n";
     inputEffect(0)->externalRepresentation(ts, indent + 1);
     return ts;
 }
 
 } // namespace blink