diff --git a/mozilla/layout/generic/nsContainerFrame.cpp b/mozilla/layout/generic/nsContainerFrame.cpp
index 97fccbbae73..f4f22f65c80 100644
--- a/mozilla/layout/generic/nsContainerFrame.cpp
+++ b/mozilla/layout/generic/nsContainerFrame.cpp
@@ -432,7 +432,7 @@ void
 nsContainerFrame::SyncFrameViewAfterReflow(nsIPresContext* aPresContext,
                                            nsIFrame*       aFrame,
                                            nsIView*        aView,
-                                           nsRect*         aCombinedArea,
+                                           const nsRect*   aCombinedArea,
                                            PRUint32        aFlags)
 {
   if (aView) {
diff --git a/mozilla/layout/generic/nsContainerFrame.h b/mozilla/layout/generic/nsContainerFrame.h
index 6a7e08f4fe8..64b62dfe20b 100644
--- a/mozilla/layout/generic/nsContainerFrame.h
+++ b/mozilla/layout/generic/nsContainerFrame.h
@@ -91,12 +91,11 @@ public:
   // Flags:
   // NS_FRAME_NO_MOVE_VIEW - don't position the frame's view. Set this if you
   //    don't want to automatically sync the frame and view
-  // NS_FRAME_NO_MOVE_VIEW - don't move the frame. aX and aY are ignored in this
-  //   case. Also implies NS_FRAME_NO_MOVE_VIEW
+  // NS_FRAME_NO_SIZE_VIEW - don't size the view
   static void SyncFrameViewAfterReflow(nsIPresContext* aPresContext,
                                        nsIFrame*       aFrame,
                                        nsIView*        aView,
-                                       nsRect*         aCombinedArea,
+                                       const nsRect*   aCombinedArea,
                                        PRUint32        aFlags = 0);
   
   /**
diff --git a/mozilla/layout/html/base/src/nsContainerFrame.cpp b/mozilla/layout/html/base/src/nsContainerFrame.cpp
index 97fccbbae73..f4f22f65c80 100644
--- a/mozilla/layout/html/base/src/nsContainerFrame.cpp
+++ b/mozilla/layout/html/base/src/nsContainerFrame.cpp
@@ -432,7 +432,7 @@ void
 nsContainerFrame::SyncFrameViewAfterReflow(nsIPresContext* aPresContext,
                                            nsIFrame*       aFrame,
                                            nsIView*        aView,
-                                           nsRect*         aCombinedArea,
+                                           const nsRect*   aCombinedArea,
                                            PRUint32        aFlags)
 {
   if (aView) {
diff --git a/mozilla/layout/html/base/src/nsContainerFrame.h b/mozilla/layout/html/base/src/nsContainerFrame.h
index 6a7e08f4fe8..64b62dfe20b 100644
--- a/mozilla/layout/html/base/src/nsContainerFrame.h
+++ b/mozilla/layout/html/base/src/nsContainerFrame.h
@@ -91,12 +91,11 @@ public:
   // Flags:
   // NS_FRAME_NO_MOVE_VIEW - don't position the frame's view. Set this if you
   //    don't want to automatically sync the frame and view
-  // NS_FRAME_NO_MOVE_VIEW - don't move the frame. aX and aY are ignored in this
-  //   case. Also implies NS_FRAME_NO_MOVE_VIEW
+  // NS_FRAME_NO_SIZE_VIEW - don't size the view
   static void SyncFrameViewAfterReflow(nsIPresContext* aPresContext,
                                        nsIFrame*       aFrame,
                                        nsIView*        aView,
-                                       nsRect*         aCombinedArea,
+                                       const nsRect*   aCombinedArea,
                                        PRUint32        aFlags = 0);
   
   /**