Avoid int coercion of box-shadow args

third_party/WebKit/Source/core/paint/BoxPainter.cpp

Index: third_party/WebKit/Source/core/paint/BoxPainter.cpp
diff --git a/third_party/WebKit/Source/core/paint/BoxPainter.cpp b/third_party/WebKit/Source/core/paint/BoxPainter.cpp
index a4e829f2a8703a4084df1fc5648e4860cc61a7e7..3b1f0b38ee6dabdfe748554c65791d4706b57fe1 100644
--- a/third_party/WebKit/Source/core/paint/BoxPainter.cpp
+++ b/third_party/WebKit/Source/core/paint/BoxPainter.cpp
@@ -671,7 +671,6 @@ void BoxPainter::paintBoxShadow(const PaintInfo& info, const LayoutRect& paintRe
                 else
                     influenceRect.shrinkRadii(-changeAmount);
 
-                // TODO: support non-integer shadows - crbug.com/334829
                 FloatRoundedRect roundedFillRect = border;
                 roundedFillRect.inflate(shadowSpread);
 
@@ -701,8 +700,7 @@ void BoxPainter::paintBoxShadow(const PaintInfo& info, const LayoutRect& paintRe
                 else
                     clippedEdges |= GraphicsContext::BottomEdge;
             }
-            // TODO: support non-integer shadows - crbug.com/334828
-            context->drawInnerShadow(border, shadowColor, flooredIntSize(shadowOffset), shadowBlur, shadowSpread, clippedEdges);

[chrishtr, 2015/11/16 17:12:44]

Please also update the call site in ThemePainterMac.mm.

Also, not flooring here changes output. Is there a missing test for
floating-point-sized shadows?

[f(malita), 2015/11/17 13:55:23]

Done.
Right, no tests for inset subpixel shadows.  I've added one to capture the new
behavior.

+            context->drawInnerShadow(border, shadowColor, shadowOffset, shadowBlur, shadowSpread, clippedEdges);
         }
     }
 }