Fix bug # 50057: initial bookmarks menu problem with IE Favorites on Mac. r=me

xpfe/components/bookmarks/src/nsBookmarksService.h

@@ -205,14 +205,34 @@ public:
 				nsIRDFResource* property,
 				nsIRDFNode* target,
 				PRBool tv,
-				PRBool* hasAssertion) {
+				PRBool* hasAssertion)
+	{
+#ifdef	XP_MAC
+	    // on the Mac, IE favorites are stored in an HTML file.
+	    // Defer importing this files contents until necessary.
+
+	    if ((source == kNC_IEFavoritesRoot) && (mIEFavoritesAvailable == PR_FALSE))
+	    {
+		    ReadFavorites();
+	    }
+#endif
 		return mInner->HasAssertion(source, property, target, tv, hasAssertion);
 	}
 
 	NS_IMETHOD AddObserver(nsIRDFObserver* aObserver);
 	NS_IMETHOD RemoveObserver(nsIRDFObserver* aObserver);
 
-        NS_IMETHOD HasArcIn(nsIRDFNode *aNode, nsIRDFResource *aArc, PRBool *_retval) {
+        NS_IMETHOD HasArcIn(nsIRDFNode *aNode, nsIRDFResource *aArc, PRBool *_retval)
+    {
+#ifdef	XP_MAC
+	    // on the Mac, IE favorites are stored in an HTML file.
+	    // Defer importing this files contents until necessary.
+
+	    if ((aNode == kNC_IEFavoritesRoot) && (mIEFavoritesAvailable == PR_FALSE))
+	    {
+		    ReadFavorites();
+	    }
+#endif
 	    return mInner->HasArcIn(aNode, aArc, _retval);
 	}
 
@@ -223,7 +243,7 @@ public:
 
 	    if ((aSource == kNC_IEFavoritesRoot) && (mIEFavoritesAvailable == PR_FALSE))
 	    {
-		ReadFavorites();
+		    ReadFavorites();
 	    }
 #endif
 	    return mInner->HasArcOut(aSource, aArc, _retval);