diff --git a/mozilla/content/html/style/src/nsCSSStyleRule.cpp b/mozilla/content/html/style/src/nsCSSStyleRule.cpp
index a15ca32382a..bcb7e03ca47 100644
--- a/mozilla/content/html/style/src/nsCSSStyleRule.cpp
+++ b/mozilla/content/html/style/src/nsCSSStyleRule.cpp
@@ -90,8 +90,6 @@ static NS_DEFINE_IID(kCSSDisplaySID, NS_CSS_DISPLAY_SID);
 static NS_DEFINE_IID(kCSSTableSID, NS_CSS_TABLE_SID);
 static NS_DEFINE_IID(kCSSContentSID, NS_CSS_CONTENT_SID);
 static NS_DEFINE_IID(kCSSUserInterfaceSID, NS_CSS_USER_INTERFACE_SID);
-static NS_DEFINE_IID(kCSSBreaksSID, NS_CSS_BREAKS_SID);
-static NS_DEFINE_IID(kCSSPageSID, NS_CSS_PAGE_SID);
 #ifdef INCLUDE_XUL
 static NS_DEFINE_IID(kCSSXULSID, NS_CSS_XUL_SID);
 #endif
diff --git a/mozilla/layout/style/nsCSSStyleRule.cpp b/mozilla/layout/style/nsCSSStyleRule.cpp
index a15ca32382a..bcb7e03ca47 100644
--- a/mozilla/layout/style/nsCSSStyleRule.cpp
+++ b/mozilla/layout/style/nsCSSStyleRule.cpp
@@ -90,8 +90,6 @@ static NS_DEFINE_IID(kCSSDisplaySID, NS_CSS_DISPLAY_SID);
 static NS_DEFINE_IID(kCSSTableSID, NS_CSS_TABLE_SID);
 static NS_DEFINE_IID(kCSSContentSID, NS_CSS_CONTENT_SID);
 static NS_DEFINE_IID(kCSSUserInterfaceSID, NS_CSS_USER_INTERFACE_SID);
-static NS_DEFINE_IID(kCSSBreaksSID, NS_CSS_BREAKS_SID);
-static NS_DEFINE_IID(kCSSPageSID, NS_CSS_PAGE_SID);
 #ifdef INCLUDE_XUL
 static NS_DEFINE_IID(kCSSXULSID, NS_CSS_XUL_SID);
 #endif