[cc] Add nearest neighbor filtering for PictureLayer.

cc/blink/web_image_layer_impl.cc

Index: cc/blink/web_image_layer_impl.cc
diff --git a/cc/blink/web_image_layer_impl.cc b/cc/blink/web_image_layer_impl.cc
index ee80ca6a044a76ed242d2eb84985381e206e68d1..afd551a3102b0166976ce45473b3fac5acc19663 100644
--- a/cc/blink/web_image_layer_impl.cc
+++ b/cc/blink/web_image_layer_impl.cc
@@ -35,4 +35,11 @@ void WebImageLayerImpl::setImageBitmap(const SkBitmap& bitmap) {
   }
 }
 
+void WebImageLayerImpl::setNearestNeighbor(bool nearest_neighbor) {
+  if (WebLayerImpl::UsingPictureLayer()) {
+    static_cast<cc::PictureImageLayer*>(layer_->layer())
+        ->SetNearestNeighbor(nearest_neighbor);
+  }
+}
+
 }  // namespace cc_blink