--- a/layout/generic/nsFrame.cpp
+++ b/layout/generic/nsFrame.cpp
@@ -836,18 +836,18 @@ const nsIFrame::ChildListID nsIFrame::kP
 const nsIFrame::ChildListID nsIFrame::kSelectPopupList;
 const nsIFrame::ChildListID nsIFrame::kNoReflowPrincipalList;
 #endif
 
 /* virtual */ nsMargin
 nsIFrame::GetUsedMargin() const
 {
   nsMargin margin(0, 0, 0, 0);
-  if ((mState & NS_FRAME_FIRST_REFLOW) &&
-      !(mState & NS_FRAME_IN_REFLOW) ||
+  if (((mState & NS_FRAME_FIRST_REFLOW) &&
+       !(mState & NS_FRAME_IN_REFLOW)) ||
       (mState & NS_FRAME_IS_SVG_TEXT))
     return margin;
 
   nsMargin *m = static_cast<nsMargin*>
                            (Properties().Get(UsedMarginProperty()));
   if (m) {
     margin = *m;
   } else {
@@ -859,18 +859,18 @@ nsIFrame::GetUsedMargin() const
   }
   return margin;
 }
 
 /* virtual */ nsMargin
 nsIFrame::GetUsedBorder() const
 {
   nsMargin border(0, 0, 0, 0);
-  if ((mState & NS_FRAME_FIRST_REFLOW) &&
-      !(mState & NS_FRAME_IN_REFLOW) ||
+  if (((mState & NS_FRAME_FIRST_REFLOW) &&
+       !(mState & NS_FRAME_IN_REFLOW)) ||
       (mState & NS_FRAME_IS_SVG_TEXT))
     return border;
 
   // Theme methods don't use const-ness.
   nsIFrame *mutable_this = const_cast<nsIFrame*>(this);
 
   const nsStyleDisplay *disp = GetStyleDisplay();
   if (mutable_this->IsThemed(disp)) {
@@ -895,18 +895,18 @@ nsIFrame::GetUsedBorder() const
   }
   return border;
 }
 
 /* virtual */ nsMargin
 nsIFrame::GetUsedPadding() const
 {
   nsMargin padding(0, 0, 0, 0);
-  if ((mState & NS_FRAME_FIRST_REFLOW) &&
-      !(mState & NS_FRAME_IN_REFLOW) ||
+  if (((mState & NS_FRAME_FIRST_REFLOW) &&
+       !(mState & NS_FRAME_IN_REFLOW)) ||
       (mState & NS_FRAME_IS_SVG_TEXT))
     return padding;
 
   // Theme methods don't use const-ness.
   nsIFrame *mutable_this = const_cast<nsIFrame*>(this);
 
   const nsStyleDisplay *disp = GetStyleDisplay();
   if (mutable_this->IsThemed(disp)) {