MacViews: Use native certificate viewer in MacViews browser.

chrome/browser/ui/cocoa/tabs/tab_strip_controller.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
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 // Removes custom traffic light buttons from the tab strip. Idempotent.
 - (void)removeCustomWindowControls;
 
 @end
 
 @interface TabStripController(TestingAPI)
 - (void)setTabTitle:(TabController*)tab
        withContents:(content::WebContents*)contents;
 @end
 
-// Returns the parent view to use when showing a sheet for a given web contents.
-NSView* GetSheetParentViewForWebContents(content::WebContents* web_contents);
-
-// Returns the bounds to use when showing a sheet for a given parent view. This
-// returns a rect in window coordinates.
-NSRect GetSheetParentBoundsForParentView(NSView* view);
-
 #endif  // CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_CONTROLLER_H_