recognize -1 value for privacy_policy_url

lib/libmisc/shist.c

@@ -90,7 +90,7 @@ SHIST_FreeHistoryEntry (MWContext * ctxt, History_entry * entry)
     	    XP_FREE(entry->wysiwyg_url);
     	if(entry->page_services_url)
     	    XP_FREE(entry->page_services_url);
-    	if(entry->privacy_policy_url)
+    	if(entry->privacy_policy_url && entry->privacy_policy_url != (char*)(-1))
     	    XP_FREE(entry->privacy_policy_url);
 
 #ifdef MOZ_NGLAYOUT
@@ -181,7 +181,11 @@ SHIST_CreateHistoryEntry (URL_Struct * URL_s, char * title)
 	StrAllocCopy(new_entry->content_name, URL_s->content_name);
 	StrAllocCopy(new_entry->post_data,    URL_s->post_data);
 	StrAllocCopy(new_entry->post_headers, URL_s->post_headers);
-	StrAllocCopy(new_entry->privacy_policy_url, URL_s->privacy_policy_url);
+	if (URL_s->privacy_policy_url == (char*)(-1)) {
+	    new_entry->privacy_policy_url = (char*)(-1);
+	} else {
+	    StrAllocCopy(new_entry->privacy_policy_url, URL_s->privacy_policy_url);
+	}
 	StrAllocCopy(new_entry->page_services_url, URL_s->page_services_url);
 	StrAllocCopy(new_entry->etag, URL_s->etag);
 
@@ -419,7 +423,11 @@ SHIST_CloneEntry(History_entry * old_entry)
     StrAllocCopy(new_entry->title, old_entry->title);
     StrAllocCopy(new_entry->address, old_entry->address);
     StrAllocCopy(new_entry->content_name, old_entry->content_name);
-    StrAllocCopy(new_entry->privacy_policy_url, old_entry->privacy_policy_url);
+    if (old_entry->privacy_policy_url == (char*)(-1)) {
+	new_entry->privacy_policy_url = (char*)(-1);
+    } else {
+	StrAllocCopy(new_entry->privacy_policy_url, old_entry->privacy_policy_url);
+    }
     StrAllocCopy(new_entry->referer, old_entry->referer);
     StrAllocCopy(new_entry->post_data, old_entry->post_data);
     StrAllocCopy(new_entry->post_headers, old_entry->post_headers);

network/main/mkgeturl.c

@@ -4511,8 +4511,12 @@ NET_FreeURLStruct (URL_Struct * URL_s)
   PR_FREEIF(URL_s->add_crlf);
 
 	 PR_FREEIF(URL_s->page_services_url);
-    PR_FREEIF(URL_s->privacy_policy_url);
 
+	if (URL_s->privacy_policy_url != (char*)(-1)) {
+		PR_FREEIF(URL_s->privacy_policy_url);
+	} else {
+		URL_s->privacy_policy_url = NULL;
+	}
 
 #ifdef TRUST_LABELS
 	/* delete the entries and the trust list, if the list was created then there