Bug 648902 - Limit the 'hide browser window when transitioning to full screen' functionality to normalized windows. (UX improvement) r=roc

widget/src/windows/nsWindow.cpp

@@ -2906,7 +2906,8 @@ nsWindow::MakeFullScreen(PRBool aFullScreen)
   UpdateNonClientMargins();
 
   PRBool visible = mIsVisible;
-  Show(PR_FALSE);
+  if (mOldSizeMode == nsSizeMode_Normal)
+    Show(PR_FALSE);
   
   // Will call hide chrome, reposition window. Note this will
   // also cache dimensions for restoration, so it should only