Always antialias clips in ClipDisplayItem.

third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp

Index: third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp b/third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp
index 2b7294306129cf72111db17bb8cfd82fddbe0474..a1557a1517b61fb90d2b491b843bb066988b6f27 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp
+++ b/third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp
@@ -14,10 +14,10 @@ namespace blink {
 void ClipDisplayItem::replay(GraphicsContext& context) const
 {
     context.save();
-    context.clipRect(m_clipRect, NotAntiAliased, SkRegion::kIntersect_Op);
+    context.clipRect(m_clipRect, AntiAliased);
 
     for (const FloatRoundedRect& roundedRect : m_roundedRectClips)
-        context.clipRoundedRect(roundedRect, SkRegion::kIntersect_Op);
+        context.clipRoundedRect(roundedRect);
 }
 
 void ClipDisplayItem::appendToWebDisplayItemList(const IntRect& visualRect, WebDisplayItemList* list) const