--- a/layout/style/ServoBindingList.h
+++ b/layout/style/ServoBindingList.h
@@ -142,16 +142,21 @@ SERVO_BINDING_FUNC(Servo_CssRules_GetCou
                    ServoCssRulesBorrowed rules, uint32_t index)
 SERVO_BINDING_FUNC(Servo_StyleRule_GetStyle, RawServoDeclarationBlockStrong,
                    RawServoStyleRuleBorrowed rule)
 SERVO_BINDING_FUNC(Servo_StyleRule_SetStyle, void,
                    RawServoStyleRuleBorrowed rule,
                    RawServoDeclarationBlockBorrowed declarations)
 SERVO_BINDING_FUNC(Servo_StyleRule_GetSelectorText, void,
                    RawServoStyleRuleBorrowed rule, nsAString* result)
+SERVO_BINDING_FUNC(Servo_StyleRule_GetSelectorTextFromIndex, void,
+                   RawServoStyleRuleBorrowed rule, uint32_t index,
+                   nsAString* result)
+SERVO_BINDING_FUNC(Servo_StyleRule_GetSelectorCount, void,
+                   RawServoStyleRuleBorrowed rule, uint32_t* count)
 SERVO_BINDING_FUNC(Servo_ImportRule_GetHref, void,
                    RawServoImportRuleBorrowed rule, nsAString* result)
 SERVO_BINDING_FUNC(Servo_ImportRule_GetSheet, const RawServoStyleSheet*,
                    RawServoImportRuleBorrowed rule)
 SERVO_BINDING_FUNC(Servo_Keyframe_GetKeyText, void,
                    RawServoKeyframeBorrowed keyframe, nsAString* result)
 // Returns whether it successfully changes the key text.
 SERVO_BINDING_FUNC(Servo_Keyframe_SetKeyText, bool,

--- a/layout/style/ServoStyleRule.cpp
+++ b/layout/style/ServoStyleRule.cpp
@@ -248,33 +248,39 @@ ServoStyleRule::GetStyle(nsIDOMCSSStyleD
 {
   *aStyle = do_AddRef(&mDecls).take();
   return NS_OK;
 }
 
 uint32_t
 ServoStyleRule::GetSelectorCount()
 {
-  return 0;
+  uint32_t aCount;
+  Servo_StyleRule_GetSelectorCount(mRawRule, &aCount);
+
+  return aCount;
 }
 
 nsresult
 ServoStyleRule::GetSelectorText(uint32_t aSelectorIndex, nsAString& aText)
 {
+  Servo_StyleRule_GetSelectorTextFromIndex(mRawRule, aSelectorIndex, &aText);
   return NS_OK;
 }
 
 nsresult
 ServoStyleRule::GetSpecificity(uint32_t aSelectorIndex, uint64_t* aSpecificity)
 {
+  // TODO Bug 1370501
   return NS_OK;
 }
 
 nsresult
 ServoStyleRule::SelectorMatchesElement(Element* aElement,
                                        uint32_t aSelectorIndex,
                                        const nsAString& aPseudo,
                                        bool* aMatches)
 {
+  // TODO Bug 1370502
   return NS_OK;
 }
 
 } // namespace mozilla