Avoid int coercion of box-shadow args

third_party/WebKit/Source/platform/graphics/DrawLooperBuilder.cpp

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 49 matching lines @@
 
 void DrawLooperBuilder::addUnmodifiedContent()
 {
     SkLayerDrawLooper::LayerInfo info;
     m_skDrawLooperBuilder.addLayerOnTop(info);
 }
 
 void DrawLooperBuilder::addShadow(const FloatSize& offset, float blur, const Color& color,
     ShadowTransformMode shadowTransformMode, ShadowAlphaMode shadowAlphaMode)
 {
-    // Negative blurs are not allowed, so just pin the value to 0
-    if (blur < 0)
-        blur = 0;
+    ASSERT(blur >= 0);
 
     // Detect when there's no effective shadow.
     if (!color.alpha())
         return;
 
     SkColor skColor = color.rgb();
 
     SkLayerDrawLooper::LayerInfo info;
 
     switch (shadowAlphaMode) {
@@ skipping 22 matching lines @@
             mfFlags |= SkBlurMaskFilter::kIgnoreTransform_BlurFlag;
         RefPtr<SkMaskFilter> mf = adoptRef(SkBlurMaskFilter::Create(kNormal_SkBlurStyle, sigma, mfFlags));
         paint->setMaskFilter(mf.get());
     }
 
     RefPtr<SkColorFilter> cf = adoptRef(SkColorFilter::CreateModeFilter(skColor, SkXfermode::kSrcIn_Mode));
     paint->setColorFilter(cf.get());
 }
 
 } // namespace blink