diff --git a/mozilla/content/html/style/src/nsCSSStyleSheet.cpp b/mozilla/content/html/style/src/nsCSSStyleSheet.cpp
index 1d4756b06e1..6260603f5b9 100644
--- a/mozilla/content/html/style/src/nsCSSStyleSheet.cpp
+++ b/mozilla/content/html/style/src/nsCSSStyleSheet.cpp
@@ -1646,8 +1646,6 @@ PRInt32 CSSStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
 
   PRInt32 matchCount = 0;
 
-  if (!aPresContext || !aContent || !aResults) return matchCount;
-
   nsIAtom* presMedium = nsnull;
 
   aPresContext->GetMedium(&presMedium);
diff --git a/mozilla/content/html/style/src/nsHTMLCSSStyleSheet.cpp b/mozilla/content/html/style/src/nsHTMLCSSStyleSheet.cpp
index 38f18b16950..c4d090621e1 100644
--- a/mozilla/content/html/style/src/nsHTMLCSSStyleSheet.cpp
+++ b/mozilla/content/html/style/src/nsHTMLCSSStyleSheet.cpp
@@ -425,8 +425,6 @@ PRInt32 HTMLCSSStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
 
   PRInt32 matchCount = 0;
 
-  if (!aPresContext || !aContent || !aResults) return matchCount;
-
   nsIStyledContent* styledContent;
 
   // just get the one and only style rule from the content's STYLE attribute
diff --git a/mozilla/layout/html/style/src/nsCSSStyleSheet.cpp b/mozilla/layout/html/style/src/nsCSSStyleSheet.cpp
index 1d4756b06e1..6260603f5b9 100644
--- a/mozilla/layout/html/style/src/nsCSSStyleSheet.cpp
+++ b/mozilla/layout/html/style/src/nsCSSStyleSheet.cpp
@@ -1646,8 +1646,6 @@ PRInt32 CSSStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
 
   PRInt32 matchCount = 0;
 
-  if (!aPresContext || !aContent || !aResults) return matchCount;
-
   nsIAtom* presMedium = nsnull;
 
   aPresContext->GetMedium(&presMedium);
diff --git a/mozilla/layout/html/style/src/nsHTMLCSSStyleSheet.cpp b/mozilla/layout/html/style/src/nsHTMLCSSStyleSheet.cpp
index 38f18b16950..c4d090621e1 100644
--- a/mozilla/layout/html/style/src/nsHTMLCSSStyleSheet.cpp
+++ b/mozilla/layout/html/style/src/nsHTMLCSSStyleSheet.cpp
@@ -425,8 +425,6 @@ PRInt32 HTMLCSSStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
 
   PRInt32 matchCount = 0;
 
-  if (!aPresContext || !aContent || !aResults) return matchCount;
-
   nsIStyledContent* styledContent;
 
   // just get the one and only style rule from the content's STYLE attribute
diff --git a/mozilla/layout/style/nsCSSStyleSheet.cpp b/mozilla/layout/style/nsCSSStyleSheet.cpp
index 1d4756b06e1..6260603f5b9 100644
--- a/mozilla/layout/style/nsCSSStyleSheet.cpp
+++ b/mozilla/layout/style/nsCSSStyleSheet.cpp
@@ -1646,8 +1646,6 @@ PRInt32 CSSStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
 
   PRInt32 matchCount = 0;
 
-  if (!aPresContext || !aContent || !aResults) return matchCount;
-
   nsIAtom* presMedium = nsnull;
 
   aPresContext->GetMedium(&presMedium);
diff --git a/mozilla/layout/style/nsHTMLCSSStyleSheet.cpp b/mozilla/layout/style/nsHTMLCSSStyleSheet.cpp
index 38f18b16950..c4d090621e1 100644
--- a/mozilla/layout/style/nsHTMLCSSStyleSheet.cpp
+++ b/mozilla/layout/style/nsHTMLCSSStyleSheet.cpp
@@ -425,8 +425,6 @@ PRInt32 HTMLCSSStyleSheetImpl::RulesMatching(nsIPresContext* aPresContext,
 
   PRInt32 matchCount = 0;
 
-  if (!aPresContext || !aContent || !aResults) return matchCount;
-
   nsIStyledContent* styledContent;
 
   // just get the one and only style rule from the content's STYLE attribute