[Mac] Show the page info window after clicking the security icon in the URL bar

chrome/browser/cocoa/autocomplete_text_field_cell.h

 // Copyright (c) 2009 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/scoped_nsobject.h"
 
 // AutocompleteTextFieldCell customizes the look of the Omnibox text
 // field.  The border and focus ring are modified, as is the font
@@ skipping 50 matching lines @@
 
 - (void)setHintIcon:(NSImage*)icon;
 
 // Return the portion of the cell to show the text cursor over.
 - (NSRect)textCursorFrameForFrame:(NSRect)cellFrame;
 
 // Return the portion of the cell to use for text display.  This
 // corresponds to the frame with our added decorations sliced off.
 - (NSRect)textFrameForFrame:(NSRect)cellFrame;
 
+// Return the portion of the cell to use for displaing the |hintIcon_|.
+- (NSRect)hintImageFrameForFrame:(NSRect)cellFrame;
+
 @end
 
 // Internal methods here exposed for unit testing.
 @interface AutocompleteTextFieldCell (UnitTesting)
 
 @property(readonly) NSAttributedString* keywordString;
 @property(readonly) NSAttributedString* hintString;
 @property(readonly) NSImage* hintIcon;
 
 @end