Always antialias clips in ClipDisplayItem.

cc/playback/clip_display_item.cc

Index: cc/playback/clip_display_item.cc
diff --git a/cc/playback/clip_display_item.cc b/cc/playback/clip_display_item.cc
index 90b8904c7db134eaf544fef245fecf382fc7c5e0..60a28da837f6912a106bddeb36a02ba05a2f5df1 100644
--- a/cc/playback/clip_display_item.cc
+++ b/cc/playback/clip_display_item.cc
@@ -62,14 +62,14 @@ void ClipDisplayItem::Raster(SkCanvas* canvas,
                              SkPicture::AbortCallback* callback) const {
   canvas->save();
   canvas->clipRect(SkRect::MakeXYWH(clip_rect_.x(), clip_rect_.y(),
-                                    clip_rect_.width(), clip_rect_.height()));
+                                    clip_rect_.width(), clip_rect_.height()),
+                   SkRegion::kIntersect_Op, true);

[ajuma, 2016/01/08 14:15:04]

Please use a variable for the bool rather than just a literal, like we were
doing before in the 'else' case below.

[chrishtr, 2016/01/12 23:43:14]

Done

   for (size_t i = 0; i < rounded_clip_rects_.size(); ++i) {
     if (rounded_clip_rects_[i].isRect()) {
-      canvas->clipRect(rounded_clip_rects_[i].rect());
+      canvas->clipRect(rounded_clip_rects_[i].rect(), SkRegion::kIntersect_Op,
+                       true);
     } else {
-      bool antialiased = true;
-      canvas->clipRRect(rounded_clip_rects_[i], SkRegion::kIntersect_Op,
-                        antialiased);
+      canvas->clipRRect(rounded_clip_rects_[i], SkRegion::kIntersect_Op, true);
     }
   }
 }