Fix focus ring damage sometimes being 1 pixel off.

third_party/WebKit/Source/core/style/ComputedStyle.cpp

Index: third_party/WebKit/Source/core/style/ComputedStyle.cpp
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.cpp b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
index 935bc431515c0bc859e42937d60581a679ff7a8a..4fc5b768564c04b36026eb3cb6a701767f4fe0e1 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.cpp
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.cpp
@@ -2225,7 +2225,7 @@ int ComputedStyle::outlineOutsetExtent() const {
     return 0;
   if (outlineStyleIsAuto()) {
     return GraphicsContext::focusRingOutsetExtent(
-        outlineOffset(), getOutlineStrokeWidthForFocusRing());
+        outlineOffset(), std::ceil(getOutlineStrokeWidthForFocusRing()));
   }
   return std::max(0, saturatedAddition(outlineWidth(), outlineOffset()));
 }