Revert code to avoid AntiAliased clips now that the referenced Skia bug is fixed.

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 70dfdab0ba398d09aebdc58b2a8ed872bd1698cd..357e1f7bb5b06666d9dc8610a0dab9eecff518ee 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp
+++ b/third_party/WebKit/Source/platform/graphics/paint/ClipDisplayItem.cpp
@@ -14,9 +14,7 @@ namespace blink {
 void ClipDisplayItem::replay(GraphicsContext& context) const
 {
     context.save();
-    // TODO(chrishtr): make this AntiAliased. Not anti-aliasing here is a workaround for a PDF rendering issue.
-    // See crbug.com/590971.
-    context.clipRect(m_clipRect, NotAntiAliased);
+    context.clipRect(m_clipRect, AntiAliased);
 
     for (const FloatRoundedRect& roundedRect : m_roundedRectClips)
         context.clipRoundedRect(roundedRect);