[Mac] Unspoofable infobars v3.

chrome/browser/ui/cocoa/infobars/infobar_controller_unittest.mm

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_nsobject.h"
 #include "base/string_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/tab_contents/confirm_infobar_delegate.h"
@@ skipping 36 matching lines @@
   return self;
 }
 
 - (void)willRemoveController:(InfoBarController*)controller {
 }
 
 - (void)removeController:(InfoBarController*)controller {
   DCHECK(controller_ == controller);
   controller_ = nil;
 }
+
+- (BrowserWindowController*)browserWindowController {
+  return nil;
+}
 @end
 
 // Calls to removeSelf normally start an animation, which removes the infobar
 // completely when finished.  For testing purposes, we create a mock controller
 // which calls close: immediately, rather than kicking off an animation.
 @interface TestLinkInfoBarController : LinkInfoBarController
 - (void)removeSelf;
 @end
 
 @implementation TestLinkInfoBarController
@@ skipping 243 matching lines @@
   const CGFloat width = 20;
   NSRect newViewFrame = [[controller_ view] frame];
   newViewFrame.size.width += width;
   [[controller_ view] setFrame:newViewFrame];
 
   NSRect newLabelFrame = [controller_ labelFrame];
   EXPECT_EQ(NSWidth(newLabelFrame), NSWidth(originalLabelFrame) + width);
 }
 
 }  // namespace