Makes it so when NSViewControllers go away that they remove their views from ...

chrome/browser/cocoa/infobar_controller.mm

Index: chrome/browser/cocoa/infobar_controller.mm
===================================================================
--- chrome/browser/cocoa/infobar_controller.mm	(revision 28822)
+++ chrome/browser/cocoa/infobar_controller.mm	(working copy)
@@ -43,6 +43,13 @@
   return self;
 }
 
+- (void)dealloc {
+  // Remove our view from its superview so it doesn't attempt to reference
+  // it when the controller is gone.
+  [[self view] removeFromSuperview];
+  [super dealloc];
+}
+
 // All infobars have an icon, so we set up the icon in the base class
 // awakeFromNib.
 - (void)awakeFromNib {