diff --git a/components/style/error_reporting.rs b/components/style/error_reporting.rs
index fb41a777e31..9ad89a54cc5 100644
--- a/components/style/error_reporting.rs
+++ b/components/style/error_reporting.rs
@@ -42,3 +42,17 @@ impl ParseErrorReporter for StdoutErrorReporter {
         }
     }
 }
+
+/// Error reporter which silently forgets errors
+pub struct NullReporter;
+
+impl ParseErrorReporter for NullReporter {
+    fn report_error(&self,
+            _: &mut Parser,
+            _: SourcePosition,
+            _: &str,
+            _: &UrlExtraData,
+            _: u64) {
+        // do nothing
+    }
+}
diff --git a/components/style/keyframes.rs b/components/style/keyframes.rs
index 542481b287c..d7e3485fc7d 100644
--- a/components/style/keyframes.rs
+++ b/components/style/keyframes.rs
@@ -8,6 +8,7 @@
 
 use cssparser::{AtRuleParser, Parser, QualifiedRuleParser, RuleListParser};
 use cssparser::{DeclarationListParser, DeclarationParser, parse_one_rule};
+use error_reporting::NullReporter;
 use parser::{LengthParsingMode, ParserContext, log_css_error};
 use properties::{Importance, PropertyDeclaration, PropertyDeclarationBlock, PropertyId};
 use properties::{PropertyDeclarationId, LonghandId, ParsedDeclaration};
@@ -18,7 +19,7 @@ use shared_lock::{SharedRwLock, SharedRwLockReadGuard, Locked, ToCssWithGuard};
 use std::fmt;
 use std::sync::Arc;
 use style_traits::ToCss;
-use stylesheets::{CssRuleType, MemoryHoleReporter, Stylesheet, VendorPrefix};
+use stylesheets::{CssRuleType, Stylesheet, VendorPrefix};
 
 /// A number from 0 to 1, indicating the percentage of the animation when this
 /// keyframe should run.
@@ -125,7 +126,7 @@ impl Keyframe {
     /// Parse a CSS keyframe.
     pub fn parse(css: &str, parent_stylesheet: &Stylesheet)
                  -> Result<Arc<Locked<Self>>, ()> {
-        let error_reporter = MemoryHoleReporter;
+        let error_reporter = NullReporter;
         let context = ParserContext::new(parent_stylesheet.origin,
                                          &parent_stylesheet.url_data,
                                          &error_reporter,
diff --git a/components/style/stylesheets.rs b/components/style/stylesheets.rs
index 8d2c59744b5..bb08dd247d1 100644
--- a/components/style/stylesheets.rs
+++ b/components/style/stylesheets.rs
@@ -10,7 +10,7 @@ use {Atom, Prefix, Namespace};
 use cssparser::{AtRuleParser, Parser, QualifiedRuleParser};
 use cssparser::{AtRuleType, RuleListParser, SourcePosition, Token, parse_one_rule};
 use cssparser::ToCss as ParserToCss;
-use error_reporting::ParseErrorReporter;
+use error_reporting::{ParseErrorReporter, NullReporter};
 #[cfg(feature = "servo")]
 use font_face::FontFaceRuleData;
 use font_face::parse_font_face_block;
@@ -321,20 +321,6 @@ pub enum CssRuleType {
     Viewport            = 15,
 }
 
-/// Error reporter which silently forgets errors
-pub struct MemoryHoleReporter;
-
-impl ParseErrorReporter for MemoryHoleReporter {
-    fn report_error(&self,
-            _: &mut Parser,
-            _: SourcePosition,
-            _: &str,
-            _: &UrlExtraData,
-            _: u64) {
-        // do nothing
-    }
-}
-
 #[allow(missing_docs)]
 pub enum SingleRuleParseError {
     Syntax,
@@ -418,7 +404,7 @@ impl CssRule {
                  state: Option<State>,
                  loader: Option<&StylesheetLoader>)
                  -> Result<(Self, State), SingleRuleParseError> {
-        let error_reporter = MemoryHoleReporter;
+        let error_reporter = NullReporter;
         let mut namespaces = parent_stylesheet.namespaces.write();
         let context = ParserContext::new(parent_stylesheet.origin,
                                          &parent_stylesheet.url_data,