Align the tabs menu by using AttachedToWindow. Somewhat of a hack and I swear

InvalidateLayout worked before, but it does not seem to now.

Also use a const for an empty BString instead of returning a local for the tab
label.

git-svn-id: http://svn.haiku-os.org/webpositive/webkit/trunk@573 94f232f2-1747-11df-bad5-a5bfde151594

src/apps/webpositive/tabview/TabManager.cpp

@@ -48,6 +48,9 @@
 #include "TabView.h"
 
 
+const static BString kEmptyString;
+
+
 // #pragma mark - Helper classes
 
 
@@ -265,8 +268,9 @@ public:
 					}
 				}
 
-				// Force layout to get the final menu size
+				// Force layout to get the final menu size. InvalidateLayout()
-				tabMenu->InvalidateLayout();
+				// did not seem to work here.
+				tabMenu->AttachedToWindow();
 				BRect buttonFrame = fTabMenuButton->Frame();
 				BRect menuFrame = tabMenu->Frame();
 				BPoint openPoint = ConvertToScreen(buttonFrame.LeftBottom());
@@ -911,7 +915,7 @@ TabManager::TabLabel(int32 tabIndex)
 	if (tab)
 		return tab->Label();
 	else
-		return "";
+		return kEmptyString;
 }
 
 void