diff --git a/mozilla/layout/base/nsPresContext.cpp b/mozilla/layout/base/nsPresContext.cpp
index e18597c71ca..afde194112d 100644
--- a/mozilla/layout/base/nsPresContext.cpp
+++ b/mozilla/layout/base/nsPresContext.cpp
@@ -59,7 +59,7 @@ static NS_DEFINE_IID(kIPresContextIID, NS_IPRESCONTEXT_IID);
 static NS_DEFINE_IID(kLookAndFeelCID,  NS_LOOKANDFEEL_CID);
 static NS_DEFINE_IID(kILookAndFeelIID, NS_ILOOKANDFEEL_IID);
 
-//MOZ_DECL_CTOR(nsPresContext);
+MOZ_DECL_CTOR(nsPresContext);
 
 nsPresContext::nsPresContext()
   : mDefaultFont("Times", NS_FONT_STYLE_NORMAL,
@@ -73,7 +73,7 @@ nsPresContext::nsPresContext()
                       0,
                       NSIntPointsToTwips(10))
 {
-  //  MOZ_CTOR(nsPresContext);
+  MOZ_CTOR(nsPresContext);
   NS_INIT_REFCNT();
   mCompatibilityMode = eCompatibility_Standard;
   mCompatibilityLocked = PR_FALSE;
@@ -96,7 +96,7 @@ nsPresContext::nsPresContext()
 
 nsPresContext::~nsPresContext()
 {
-  //  MOZ_DTOR(nsPresContext);
+  MOZ_DTOR(nsPresContext);
   mShell = nsnull;
 
   Stop();
diff --git a/mozilla/layout/base/src/nsPresContext.cpp b/mozilla/layout/base/src/nsPresContext.cpp
index e18597c71ca..afde194112d 100644
--- a/mozilla/layout/base/src/nsPresContext.cpp
+++ b/mozilla/layout/base/src/nsPresContext.cpp
@@ -59,7 +59,7 @@ static NS_DEFINE_IID(kIPresContextIID, NS_IPRESCONTEXT_IID);
 static NS_DEFINE_IID(kLookAndFeelCID,  NS_LOOKANDFEEL_CID);
 static NS_DEFINE_IID(kILookAndFeelIID, NS_ILOOKANDFEEL_IID);
 
-//MOZ_DECL_CTOR(nsPresContext);
+MOZ_DECL_CTOR(nsPresContext);
 
 nsPresContext::nsPresContext()
   : mDefaultFont("Times", NS_FONT_STYLE_NORMAL,
@@ -73,7 +73,7 @@ nsPresContext::nsPresContext()
                       0,
                       NSIntPointsToTwips(10))
 {
-  //  MOZ_CTOR(nsPresContext);
+  MOZ_CTOR(nsPresContext);
   NS_INIT_REFCNT();
   mCompatibilityMode = eCompatibility_Standard;
   mCompatibilityLocked = PR_FALSE;
@@ -96,7 +96,7 @@ nsPresContext::nsPresContext()
 
 nsPresContext::~nsPresContext()
 {
-  //  MOZ_DTOR(nsPresContext);
+  MOZ_DTOR(nsPresContext);
   mShell = nsnull;
 
   Stop();