Fixed a memory leak of a content object

content/html/style/src/nsCSSStyleSheet.cpp

@@ -881,7 +881,7 @@ static void ContentEnumFunc(nsICSSStyleRule* aRule, void* aData)
       content->GetParent(content);
       NS_IF_RELEASE(lastContent);
     }
-    NS_IF_RELEASE(lastContent);
+    NS_IF_RELEASE(content);
     if (nsnull == selector) { // ran out, it matched
       nsIStyleRule* iRule;
       if (NS_OK == aRule->QueryInterface(kIStyleRuleIID, (void**)&iRule)) {

content/html/style/src/nsHTMLStyleSheet.cpp

@@ -1391,8 +1391,8 @@ PRBool
 HTMLStyleSheetImpl::IsScrollable(nsIPresContext* aPresContext, const nsStyleDisplay* aDisplay)
 {
   // For the time being it's scrollable if the overflow property is auto or
-  // scroll, regardless of whether the width  or height is fixed in size
+  // scroll, regardless of whether the width or height is fixed in size
-  PRInt32 scrolling    = -1;
+  PRInt32 scrolling = -1;
   nsISupports* container;
   if (nsnull != aPresContext) {
     aPresContext->GetContainer(&container);

layout/html/style/src/nsCSSStyleSheet.cpp

@@ -881,7 +881,7 @@ static void ContentEnumFunc(nsICSSStyleRule* aRule, void* aData)
       content->GetParent(content);
       NS_IF_RELEASE(lastContent);
     }
-    NS_IF_RELEASE(lastContent);
+    NS_IF_RELEASE(content);
     if (nsnull == selector) { // ran out, it matched
       nsIStyleRule* iRule;
       if (NS_OK == aRule->QueryInterface(kIStyleRuleIID, (void**)&iRule)) {

layout/html/style/src/nsHTMLStyleSheet.cpp

@@ -1391,8 +1391,8 @@ PRBool
 HTMLStyleSheetImpl::IsScrollable(nsIPresContext* aPresContext, const nsStyleDisplay* aDisplay)
 {
   // For the time being it's scrollable if the overflow property is auto or
-  // scroll, regardless of whether the width  or height is fixed in size
+  // scroll, regardless of whether the width or height is fixed in size
-  PRInt32 scrolling    = -1;
+  PRInt32 scrolling = -1;
   nsISupports* container;
   if (nsnull != aPresContext) {
     aPresContext->GetContainer(&container);

layout/style/nsCSSStyleSheet.cpp

@@ -881,7 +881,7 @@ static void ContentEnumFunc(nsICSSStyleRule* aRule, void* aData)
       content->GetParent(content);
       NS_IF_RELEASE(lastContent);
     }
-    NS_IF_RELEASE(lastContent);
+    NS_IF_RELEASE(content);
     if (nsnull == selector) { // ran out, it matched
       nsIStyleRule* iRule;
       if (NS_OK == aRule->QueryInterface(kIStyleRuleIID, (void**)&iRule)) {

layout/style/nsHTMLStyleSheet.cpp

@@ -1391,8 +1391,8 @@ PRBool
 HTMLStyleSheetImpl::IsScrollable(nsIPresContext* aPresContext, const nsStyleDisplay* aDisplay)
 {
   // For the time being it's scrollable if the overflow property is auto or
-  // scroll, regardless of whether the width  or height is fixed in size
+  // scroll, regardless of whether the width or height is fixed in size
-  PRInt32 scrolling    = -1;
+  PRInt32 scrolling = -1;
   nsISupports* container;
   if (nsnull != aPresContext) {
     aPresContext->GetContainer(&container);